1. 口算。(建议用时3分钟)
$\frac{12}{15} ÷ 6 =$
$95\% - \frac{1}{5} =$
$\frac{2}{3} + \frac{1}{7} =$
$\frac{12}{25} ÷ \frac{6}{25} =$
$\frac{9}{13} × 39\% =$
$\frac{2}{21} ÷ \frac{2}{7} =$
$\frac{3}{5} - \frac{1}{4} =$
$\frac{9}{10} - 40\% =$
$\frac{1}{2} × \frac{4}{9} =$
$\frac{2}{15} ÷ \frac{1}{3} =$
$\frac{1}{8} × 40\% =$
$\frac{14}{15} × \frac{5}{24} =$
$2.4 × \frac{2}{3} =$
$\frac{7}{33} × \frac{22}{21} =$
$\frac{9}{52} ÷ \frac{3}{26} =$
$\frac{1}{2} ÷ 50\% =$
$\frac{3}{4} × \frac{2}{7} =$
$\frac{24}{25} ÷ 40\% =$
$\frac{7}{9} × 72 =$
$\frac{6}{7} ÷ \frac{3}{4} =$
$\frac{12}{15} ÷ 6 =$
$95\% - \frac{1}{5} =$
$\frac{2}{3} + \frac{1}{7} =$
$\frac{12}{25} ÷ \frac{6}{25} =$
$\frac{9}{13} × 39\% =$
$\frac{2}{21} ÷ \frac{2}{7} =$
$\frac{3}{5} - \frac{1}{4} =$
$\frac{9}{10} - 40\% =$
$\frac{1}{2} × \frac{4}{9} =$
$\frac{2}{15} ÷ \frac{1}{3} =$
$\frac{1}{8} × 40\% =$
$\frac{14}{15} × \frac{5}{24} =$
$2.4 × \frac{2}{3} =$
$\frac{7}{33} × \frac{22}{21} =$
$\frac{9}{52} ÷ \frac{3}{26} =$
$\frac{1}{2} ÷ 50\% =$
$\frac{3}{4} × \frac{2}{7} =$
$\frac{24}{25} ÷ 40\% =$
$\frac{7}{9} × 72 =$
$\frac{6}{7} ÷ \frac{3}{4} =$
答案
1. $\frac{2}{15}$ 0.75 $\frac{17}{21}$ 2
0.27 $\frac{1}{3}$ $\frac{7}{20}$ 0.5
$\frac{2}{9}$ $\frac{2}{5}$ $\frac{1}{20}$ $\frac{7}{36}$
1.6 $\frac{2}{9}$ $\frac{3}{2}$ 1
$\frac{3}{14}$ $\frac{12}{5}$ 56 $\frac{8}{7}$
0.27 $\frac{1}{3}$ $\frac{7}{20}$ 0.5
$\frac{2}{9}$ $\frac{2}{5}$ $\frac{1}{20}$ $\frac{7}{36}$
1.6 $\frac{2}{9}$ $\frac{3}{2}$ 1
$\frac{3}{14}$ $\frac{12}{5}$ 56 $\frac{8}{7}$
2. 在○里填上“>”“<”或“=”。(建议用时2分钟)
$\frac{4}{5}$ ○ 82%
$\frac{1}{5} ÷ \frac{8}{9}$ ○ $\frac{1}{5}$
$\frac{7}{8} ÷ 2$ ○ $\frac{7}{8}$
$\frac{4}{9} × \frac{2}{5}$ ○ $\frac{2}{9} × \frac{4}{5}$
$\frac{2}{9} + \frac{2}{9}$ ○ $\frac{2}{9} × 2$
$\frac{3}{11} × 0.9$ ○ $\frac{3}{11} ÷ 0.9$
$\frac{4}{5}$ ○ 82%
$\frac{1}{5} ÷ \frac{8}{9}$ ○ $\frac{1}{5}$
$\frac{7}{8} ÷ 2$ ○ $\frac{7}{8}$
$\frac{4}{9} × \frac{2}{5}$ ○ $\frac{2}{9} × \frac{4}{5}$
$\frac{2}{9} + \frac{2}{9}$ ○ $\frac{2}{9} × 2$
$\frac{3}{11} × 0.9$ ○ $\frac{3}{11} ÷ 0.9$
答案
2. < > <
= = <
= = <
3. 计算下面各题,能用简便算法的就用简便算法。(建议用时2分钟)
$32×35\% +68÷ \frac{20}{7}$
$\frac{2}{5} + \frac{1}{2}× \frac{3}{5} + \frac{7}{10}$
$\frac{9}{10}÷ [ \frac{1}{2}× ( \frac{6}{5} - \frac{1}{3} ) ]$
$32×35\% +68÷ \frac{20}{7}$
$\frac{2}{5} + \frac{1}{2}× \frac{3}{5} + \frac{7}{10}$
$\frac{9}{10}÷ [ \frac{1}{2}× ( \frac{6}{5} - \frac{1}{3} ) ]$
答案
3. 35 $\frac{7}{5}$ $\frac{27}{13}$
4. 解决问题。(建议用时3分钟)
把92块杭州定胜糕装进11个礼盒里。他俩谁说得对?写出思考过程。

把92块杭州定胜糕装进11个礼盒里。他俩谁说得对?写出思考过程。
答案
4. 轩轩说得对
$92÷11=8$(块)……4(块)
$8+1=9$(块)
$92÷11=8$(块)……4(块)
$8+1=9$(块)
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