《2025年阳光同学计算小达人五年级数学下册冀教版》

1. 直接写出得数。（建议2分钟完成）
$\frac{3}{4} \div \frac{2}{3} =$ $\frac{5}{7} \times 14 =$ $1 \div \frac{7}{9} =$ $\frac{1}{3} \div 12 =$
$\frac{1}{4} + \frac{1}{5} =$ $\frac{7}{8} - \frac{3}{4} =$ $\frac{16}{27} \div 4 =$ $36 \div \frac{3}{2} =$
$\frac{5}{6} \times \frac{12}{25} =$ $\frac{5}{14} \times \frac{16}{15} =$ $\frac{4}{5} - \frac{7}{10} =$ $\frac{4}{9} \times \frac{1}{8} =$
$\frac{7}{3} \div \frac{7}{3} =$ $125 \times \frac{4}{5} =$ $66 \div \frac{22}{9} =$ $\frac{13}{14} \times \frac{14}{13} =$

答案： $\frac{9}{8}$@@10@@$\frac{9}{7}$@@$\frac{1}{36}$@@$\frac{9}{20}$@@$\frac{1}{8}$@@$\frac{4}{27}$@@24@@$\frac{2}{5}$@@$\frac{8}{21}$@@$\frac{1}{10}$@@$\frac{1}{18}$@@1@@100@@27@@1

2. 计算下面各题，能简算的要简算。（建议6分钟完成）
$\frac{5}{9} + \frac{1}{4} - \frac{2}{3}$ $\frac{4}{7} \times \frac{5}{8} \div \frac{25}{21}$ $\frac{15}{11} - (\frac{4}{11} + \frac{1}{6}) - \frac{3}{6}$
$(\frac{3}{4} - \frac{2}{3}) \times \frac{6}{7}$ $\frac{2}{3} + \frac{7}{9} \div \frac{14}{3}$ $\frac{7}{10} - \frac{4}{19} + \frac{9}{10} - \frac{15}{19}$
$(\frac{7}{9} + \frac{3}{8}) \div \frac{1}{9} + \frac{13}{8}$ $\frac{8}{13} \times \frac{1}{7} + \frac{5}{13} \div 7 - \frac{1}{5} \times \frac{1}{7}$

答案： $\frac{5}{36}$@@$\frac{3}{10}$@@$\frac{1}{3}$@@$\frac{1}{14}$@@$\frac{5}{6}$@@$\frac{3}{5}$@@12@@$\frac{4}{35}$

用简便方法计算。
$(\frac{4}{11} + \frac{4}{17}) \div (\frac{6}{11} + \frac{6}{17})$ $(1\frac{5}{99} + 3\frac{5}{33} + 9\frac{5}{11}) \div (1\frac{1}{99} + 3\frac{1}{33} + 9\frac{1}{11})$ ·提升练·

答案： $\frac{2}{3}$@@$1\frac{1}{25}$