II. Phần tự luận

Đặt tính rồi tính

a) 21 893 + 52 229 .......................... .......................... ..........................

b) 26 832 – 18 492 .......................... .......................... ..........................

c) 1 938  x 8 .......................... .......................... ..........................

d) 13 524 : 6 .......................... .......................... .......................... .......................... ..........................

d)    21 893 + 52 229

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{21\,\,893}\\{52\,\,229}\end{array}} \\\,\,\,\,74\,\,122\end{array}\)

b) 26 832 – 18 492

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{26\,\,832}\\{18\,\,492}\end{array}} \\\,\,\,\,\,\,\,8\,\,340\end{array}\)

c) 1 938 ´ 8

\(\begin{array}{l}\underline { \times \,\begin{array}{*{20}{c}}{1\,\,\,938}\\{\,\,\,\,\,\,\,\,\,8}\end{array}} \\15\,\,504\end{array}\)

d) 13 524 : 6

\[\left. {\begin{array}{*{20}{c}}{13\,\,524}\\{015\,\,\,\,\,\,}\\{\,\,\,32}\\{\,\,\,\,\,\,\,\,24}\\{\,\,\,\,\,\,\,\,\,\,\,0}\end{array}} \right|\begin{array}{*{20}{c}}{\underline {\,\,\,\,6\,\,\,\,\,\,} }\\{2\,\,254}\\{}\\{}\\{}\end{array}\]