《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3分钟完成）
$\frac{9}{14} \times \frac{28}{27} =$ $\frac{5}{12} \times \frac{2}{3} =$ $\frac{26}{63} \times \frac{28}{39} =$ $\frac{35}{72} \times 36 =$
$\frac{6}{5} - \frac{5}{6} =$ $18 + \frac{1}{6} =$ $54 \times \frac{8}{27} =$ $75 \times \frac{3}{25} =$
$\frac{2}{3} \times \frac{9}{16} =$ $36 \times \frac{1}{54} =$ $\frac{5}{24} \times 7 =$ $\frac{25}{12} \times \frac{48}{5} =$
$\frac{4}{21} \times 14 =$ $100 \times \frac{17}{20} =$ $12 \times \frac{7}{16} =$ $\frac{3}{14} \times \frac{2}{21} =$
$14 \times \frac{2}{21} =$ $\frac{5}{7} \times \frac{7}{5} =$ $\frac{5}{11} \times \frac{11}{10} =$ $\frac{33}{5} \times \frac{25}{22} =$

答案： $\frac{2}{3}$@@$\frac{5}{18}$@@$\frac{8}{27}$@@$\frac{35}{2}$@@$\frac{11}{30}$@@$18\frac{1}{6}$@@16@@9@@$\frac{3}{8}$@@$\frac{2}{3}$@@$\frac{35}{24}$@@20@@$\frac{8}{3}$@@85@@$\frac{21}{4}$@@$\frac{1}{49}$@@$\frac{4}{3}$@@1@@$\frac{1}{2}$@@$\frac{15}{2}$

2. 计算下面各题，能简算的要简算。（建议6分钟完成）
$\frac{11}{14} + \frac{3}{14} \times \frac{7}{6}$ $\frac{21}{16} \times \frac{2}{3} - \frac{2}{3}$ $\frac{7}{18} \times \frac{1}{4} + \frac{7}{4} \times \frac{1}{18}$
$2020 \times \frac{2018}{2019}$ $8 \times (\frac{4}{5} - \frac{3}{8}) \times 5$ $(\frac{4}{13} + \frac{1}{23}) \times 13 + \frac{10}{23}$
$(\frac{4}{5} - \frac{5}{12} + \frac{4}{15}) \times 60$ $25 \times \frac{23}{24} + \frac{1}{24}$ $\frac{3}{5} \times (\frac{7}{8} - \frac{2}{5})$

答案： $\frac{29}{28}$@@$\frac{5}{24}$@@$\frac{7}{36}$@@$2018\frac{2018}{2019}$@@17@@5@@39@@24@@$\frac{57}{200}$