1. 直接写出得数。
8×25% =
27÷30% =
32% - $\frac{1}{5}$ =
6÷5 - 1 = () %
48÷12% =
$\frac{4}{5}$×40 =
70%×$\frac{1}{2}$ =
(6 - 5)÷5 = () %
22×20% =
6.6÷11% =
4 + 46% =
1 - 12÷15 = () %
2÷40% =
65% - $\frac{1}{4}$ =
$\frac{7}{10}$÷7% =
30×(1 + 40%) =
15×3% =
88÷50% =
42÷60% =
90 + 90×20% =
$\frac{9}{20}$÷0.9 =
65÷5% =
80% + $\frac{3}{8}$ =
60 - 60×50% =

1. 2 90 0.12 20 400 32 0.35 20 4.4 60 4.46 20 5 0.4 10 42 0.45 176 70 108 0.5 1300 1.175 30

2. 填表。

2. (竖排)45% $\frac{9}{20}$ 4% 0.04 0.56 $\frac{14}{25}$ 12.5% $\frac{1}{8}$ 0.675 $\frac{27}{40}$ 1.5% 0.015 145% $\frac{29}{20}$

3. 计算下面各题，能简算的要简算。
$\frac{5}{9} ÷ 37.5\% × \frac{27}{10}$
$(1 - 75\%) × \frac{8}{15} + \frac{5}{6}$
$7.2 × 90\% + 2.8 ÷ \frac{10}{9}$
$12 × \frac{2}{3} × 40\%$
$41 × 25\% + \frac{1}{4} × 60 - 0.25$
$( \frac{4}{7} - \frac{5}{14} ) ÷ (50\% + 25\%)$

3. 4 $\frac{29}{30}$ 9 3.2 25 $\frac{2}{7}$