Bài tập Toán lớp 4 Phép nhân phân số có đáp án

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\(\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline5\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline{45}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline8\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{96}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline5\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline3\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}1\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}2\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline{77}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline5\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline6\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{66}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{13}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{52}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{20}\\\hline{77}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{10}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{13}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{65}\end{array}\)

\(\begin{array}{*{20}{c}}1\\\hline6\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{54}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline7\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline6\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline{21}\end{array}\)

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\(\begin{array}{*{20}{c}}1\\\hline6\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline{27}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline5\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{10}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{25}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline4\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{11}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{88}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{10}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{11}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{22}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{13}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}8\\\hline{117}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{18}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline8\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{22}\end{array}\)

\(\begin{array}{*{20}{c}}1\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{11}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{22}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{13}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{39}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline7\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{13}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{12}\\\hline{91}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{108}\end{array}\)

\[\begin{array}{*{20}{c}}1\\\hline7\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{63}\end{array}\]

\(\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}6\\\hline{11}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}8\\\hline{33}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{12}\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}8\\\hline{21}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}8\\\hline3\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{10}\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}{10}\\\hline{13}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{12}\\\hline5\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{24}\\\hline{13}\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{15}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline3\end{array}{\rm{ = }}\begin{array}{*{20}{c}}8\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}6\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{14}\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{28}\\\hline{33}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{12}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}6\\\hline5\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{12}\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}9\\\hline{14}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{14}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{16}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{12}\\\hline4\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline3\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{14}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}2\\\hline3\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{15}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}6\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{16}\\\hline{35}\end{array}\)

\[\begin{array}{*{20}{c}}1\\\hline5\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{17}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{17}\end{array}\]

\(\begin{array}{*{20}{c}}7\\\hline{10}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{30}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{36}\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}8\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline6\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{24}\\\hline{35}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline5\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{25}\\\hline8\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline2\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{11}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{18}\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{12}\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{32}\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{81}\\\hline8\end{array}{\rm{ = }}\begin{array}{*{20}{c}}9\\\hline2\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{24}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}8\\\hline{25}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{10}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{14}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{30}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{22}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{20}\end{array}\)

\(\begin{array}{*{20}{c}}6\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{22}\\\hline{27}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}6\\\hline{13}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{26}\\\hline{27}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline8\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline8\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{26}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{27}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}{10}\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{20}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{18}\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{15}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{10}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline{25}\end{array}\)

\(\begin{array}{*{20}{c}}{20}\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{21}\end{array}\)

\(\begin{array}{*{20}{c}}6\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{24}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{20}\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{18}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{16}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{20}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline3\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{22}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{30}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{26}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{20}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{10}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{14}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{27}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{18}\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline4\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{18}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{24}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{21}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{26}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{14}\end{array}\)

\[\begin{array}{*{20}{c}}{16}\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline{15}\end{array}\]

\(\begin{array}{*{20}{c}}{13}\\\hline{24}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{21}\\\hline{26}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{16}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline6\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{20}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{22}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline8\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{18}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}2\\\hline{15}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{21}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline9\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{15}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{25}\\\hline{26}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline{15}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{25}\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{21}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{10}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}{14}\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{14}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{26}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{55}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\[\begin{array}{*{20}{c}}4\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{16}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\]

\(\begin{array}{*{20}{c}}7\\\hline{16}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}8\\\hline{21}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}{10}\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}6\\\hline5\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}{39}\\\hline{62}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{31}\\\hline{52}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline8\end{array}\)

\(\begin{array}{*{20}{c}}{17}\\\hline{20}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{25}\\\hline{34}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline8\end{array}\)

\(\begin{array}{*{20}{c}}{64}\\\hline{75}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{25}\\\hline{48}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{68}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{34}\\\hline{35}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{16}\\\hline{25}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{32}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{62}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{31}\\\hline{45}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{72}\\\hline{77}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{12}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}6\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}{16}\\\hline{45}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{64}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{18}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{26}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{69}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{32}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{17}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{51}\\\hline{52}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}{18}\\\hline{55}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{36}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{21}\\\hline{44}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{55}\\\hline{24}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{35}\\\hline{32}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{26}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{66}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{57}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{20}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{22}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{15}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}{17}\\\hline{55}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{34}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{31}\\\hline{76}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{62}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline8\end{array}\)

\(\begin{array}{*{20}{c}}{37}\\\hline{39}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{65}\\\hline{74}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}{36}\\\hline{77}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{18}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{45}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{26}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\)

\(\begin{array}{*{20}{c}}{14}\\\hline{29}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{58}\\\hline{77}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{58}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{29}\\\hline{45}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{18}\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{33}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{96}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{36}\end{array}\)

\(\begin{array}{*{20}{c}}{19}\\\hline{30}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{30}\\\hline{76}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}{21}\\\hline{46}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{46}\\\hline{69}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{23}\end{array}\)

\(\begin{array}{*{20}{c}}{51}\\\hline{56}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{28}\\\hline{85}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{23}\\\hline{24}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}8\\\hline{69}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}{10}\\\hline{39}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{15}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline9\end{array}\)

\[\begin{array}{*{20}{c}}{50}\\\hline{63}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{10}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline7\end{array}\]

\(\begin{array}{*{20}{c}}{13}\\\hline{32}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{16}\\\hline{65}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{17}\\\hline{55}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{102}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{30}\end{array}\)

\(\begin{array}{*{20}{c}}{37}\\\hline{58}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{29}\\\hline{74}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}{45}\\\hline{56}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}8\\\hline{15}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}{29}\\\hline{85}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{51}\\\hline{58}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{81}\\\hline{94}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{47}\\\hline{54}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline4\end{array}\)

\(\begin{array}{*{20}{c}}{76}\\\hline{85}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{38}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline5\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{14}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{28}\\\hline{33}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}{62}\\\hline{69}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{46}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{31}\\\hline{69}\end{array}\)

\(\begin{array}{*{20}{c}}{77}\\\hline{86}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{43}\\\hline{66}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{41}\\\hline{88}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{44}\\\hline{82}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline4\end{array}\)

\[\begin{array}{*{20}{c}}{61}\\\hline{72}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{24}\\\hline{51}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{61}\\\hline{153}\end{array}\]

\[\begin{array}{*{20}{c}}{31}\\\hline{38}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{93}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline6\end{array}\]

\(\begin{array}{*{20}{c}}{40}\\\hline{77}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{10}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}4\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{34}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{25}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\)

\(\begin{array}{*{20}{c}}{77}\\\hline{81}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{27}\\\hline{44}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{11}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{22}\\\hline{27}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline9\end{array}\)

\(\begin{array}{*{20}{c}}{62}\\\hline{95}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{31}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline5\end{array}\)

\[\begin{array}{*{20}{c}}{29}\\\hline{36}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{58}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline8\end{array}\]

\(\begin{array}{*{20}{c}}{22}\\\hline{65}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{99}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}2\\\hline{45}\end{array}\)

\(\begin{array}{*{20}{c}}{19}\\\hline{27}\end{array}{\rm{ }} \times {\rm{ }}\begin{array}{*{20}{c}}{63}\\\hline{76}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{12}\end{array}\)