《2025年通城学典计算能手五年级数学下册青岛版五四制》

一、口算。
5.02 + 3.98 = 0.87÷2.9 = $(3 + \frac{3}{20})×5 =$
0.48×50 = 3.14×0.1² = 0.16 + 0.98 + 0.84 =
36÷$\frac{3}{4} =$ $\frac{2}{5}×\frac{4}{7} =$ $\frac{3}{4} + \frac{1}{2}÷\frac{1}{2} =$
3.14×4² = $\frac{2}{7} + \frac{3}{11} =$ $\frac{8}{7}×\frac{1}{2} - \frac{1}{7}×\frac{1}{2} =$
7.2÷0.4 = $\frac{1}{6} - \frac{1}{7} =$ 1÷$\frac{2}{3}×\frac{3}{2} =$
$\frac{5}{6} - \frac{3}{4} =$ 1 - 0.33 = $\frac{1}{3}×(15×3) =$
0.4×25 = 8÷$\frac{1}{20} =$ $\frac{8}{7} + \frac{1}{2} - \frac{8}{7} + \frac{1}{2} =$
$\frac{7}{8}÷\frac{3}{4} =$ 3.14×1² = 2.5 - 0.72 - 0.28 =
$\frac{7}{9}×45 =$ $\frac{4}{5}÷\frac{2}{3} =$ 43×99 + 43 =
3.14×0.06 = $\frac{1}{2} + \frac{2}{3} =$ 200÷4÷25 =

答案： 9@@0.3@@$15\frac{3}{4}$@@24@@0.0314@@1.98@@48@@$\frac{8}{35}$@@$\frac{7}{4}$@@50.24@@$\frac{43}{77}$@@$\frac{1}{2}$@@18@@$\frac{1}{42}$@@$\frac{9}{4}$@@$\frac{1}{12}$@@0.67@@15@@10@@160@@1@@$\frac{7}{6}$@@3.14@@1.5@@35@@$\frac{6}{5}$@@4300@@0.1884@@$\frac{7}{6}$@@2

二、计算下面各题，怎样简便就怎样计算。
0.89×100.1 40÷3 - $\frac{1}{3}×4$ $\frac{8}{15}×[0.8 - (\frac{7}{20} - 0.15)]$

答案： 89.089@@12@@$\frac{8}{25}$