II. Phần tự luận.

Đặt tính rổi tính.

247 897 456 + 31 102 426 …………………………………….. …………………………………….. ……………………………………..	29 567 019 – 3 976 780 …………………………………….. …………………………………….. ……………………………………..
198 903 × 64 …………………………………….. …………………………………….. …………………………………….. …………………………………….. …………………………………….. ……………………………………..	876 491 : 56 …………………………………….. …………………………………….. …………………………………….. …………………………………….. …………………………………….. ……………………………………..

\(\frac{5}{9}\,\, + \,\,\frac{5}{9}\,\, \times \,\,\frac{4}{5}\,\, + \,\,\frac{5}{9}\,\, \times \,\,\frac{{14}}{5}\)

= ……………………………………..

= ……………………………………..

= ……………………………………..

= ……………………………………..

\(\frac{{5\,\, \times \,\,7\,\, \times \,\,9}}{{2\,\, \times \,\,3\,\, \times \,\,7}}\)

=……………………………………..

= ……………………………………..

= ……………………………………..

= ……………………………………..

\(\frac{2}{5}\,\, + \,\,.........\,\, = \,\,\frac{1}{2}\)

\(.........\,\,:\,\,\frac{5}{9}\,\, = \,\,\frac{5}{{24}}\)

\(\frac{8}{{21}}\,\, \times \,\,..........\,\, = \,\,\frac{8}{3}\)

\(\frac{3}{{16}}\,\, - \,\,...........\,\, = \,\,\frac{1}{8}\)