《2025年通城学典计算能手四年级数学下册青岛版》

一、口算。
3.2÷0.8 =
15×0.04 =
4.9 + 8.7 + 5.1 =
0.36 + 0.84 =
0.7 - 0.03 =
2.7 + 2.7×9 =
15÷0.15 =
0.4÷0.02 =
13.5 - 6.2 - 3.8 =
3.18 + 9.2 =
1.2×0.8 =
5×(0.75÷1.5) =
4.2÷0.2 =
10.1 - 1.5 =
6×0.125×8 =
2.6×0.5 =
0.9÷0.45 =
8.1÷0.81 - 9 =
4.06×0.5 =
1.7×30 =
1.5 - 1.5÷3 =
17÷4 =
600×0.05 =
9×(3.6 + 0.4) =
12 - 3.9 =
55÷0.11 =
0.28÷0.4÷7 =
0.6×0.9 =
68÷100 =
5×0.8÷2 =

答案： 4 0.6 18.7
1.2 0.67 27
100 20 3.5
12.38 0.96 2.5
21 8.6 6
1.3 2 1
2.03 51 1
4.25 30 36
8.1 500 0.1
0.54 0.68 2

二、把下面的假分数化成带分数或整数。
$\frac{17}{6}=$
$\frac{7}{7}=$
$\frac{10}{9}=$
$\frac{22}{5}=$
$\frac{16}{5}=$
$\frac{24}{8}=$
$\frac{33}{11}=$
$\frac{52}{13}=$
$\frac{25}{4}=$

答案： 2$\frac{5}{6}$ 1 1$\frac{1}{9}$
4$\frac{2}{5}$ 3$\frac{1}{5}$ 3
3 4 6$\frac{1}{4}$