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一、直接写出得数。
$250\% × \dfrac{4}{15} =$
$4^2 ÷ 25\% =$
$3.14 × 50\% =$
$94.2\% × \dfrac{1}{6} =$
$0.7 ÷ 35\% =$
$\dfrac{1}{10} ÷ 10\% =$
$1.25 ÷ 5\% =$
$\dfrac{1}{15} × 25\% =$
$4.2\% ÷ \dfrac{6}{7} =$
$56\% × \dfrac{5}{14} =$
$200 × 15\% =$
$45\% ÷ \dfrac{5}{9} =$
$\dfrac{6}{11} × \dfrac{7}{12} =$
$2.1 ÷ \dfrac{7}{9} =$
$3.14 × 3^2 =$
$\dfrac{5}{8} ÷ 12.5\% =$
$250\% × \dfrac{4}{15} =$
$4^2 ÷ 25\% =$
$3.14 × 50\% =$
$94.2\% × \dfrac{1}{6} =$
$0.7 ÷ 35\% =$
$\dfrac{1}{10} ÷ 10\% =$
$1.25 ÷ 5\% =$
$\dfrac{1}{15} × 25\% =$
$4.2\% ÷ \dfrac{6}{7} =$
$56\% × \dfrac{5}{14} =$
$200 × 15\% =$
$45\% ÷ \dfrac{5}{9} =$
$\dfrac{6}{11} × \dfrac{7}{12} =$
$2.1 ÷ \dfrac{7}{9} =$
$3.14 × 3^2 =$
$\dfrac{5}{8} ÷ 12.5\% =$
答案
1.$\dfrac{2}{3}$ 2.64 3.1.57 4.0.157 5.2 6.1 7.25 8.$\dfrac{1}{60}$ 9.0.049 10.0.2 11.30 12.0.81 13.$\dfrac{7}{22}$ 14.2.7 15.28.26 16.5
二、计算下面各题，能简算的要简算。
$12÷(\dfrac{7}{9}-\dfrac{2}{3}×90\%)$
$7.2÷(1+\dfrac{1}{8})$
$5.3×\dfrac{1}{4}+2.7×25\%$
$102×99\%-9.9×0.2$
$48×(\dfrac{3}{8}+\dfrac{5}{12})$
$\dfrac{14}{15}×\dfrac{13}{14}+\dfrac{14}{15}×\dfrac{1}{14}$
$12÷(\dfrac{7}{9}-\dfrac{2}{3}×90\%)$
$7.2÷(1+\dfrac{1}{8})$
$5.3×\dfrac{1}{4}+2.7×25\%$
$102×99\%-9.9×0.2$
$48×(\dfrac{3}{8}+\dfrac{5}{12})$
$\dfrac{14}{15}×\dfrac{13}{14}+\dfrac{14}{15}×\dfrac{1}{14}$
答案
1.$\dfrac{135}{2}$ 2.6.4 3.2 4.99 5.38 6.$\dfrac{14}{15}$
三、看图填空。
如右图，已知甲占三角形EAB面积的25%，乙的面积比甲大60%，丙的面积是乙面积的$\frac{7}{8}$，则BD比AC长（
如右图，已知甲占三角形EAB面积的25%，乙的面积比甲大60%，丙的面积是乙面积的$\frac{7}{8}$，则BD比AC长（
40
）%。答案
40
四、下面是六年级8名同学立定跳远的测试成绩。如果想让75％的学生能达标，那么“达标线”可以定为(
1. 2. 3. 4.
5. 6. 7. 8.
1.40
)m。1. 2. 3. 4.
5. 6. 7. 8.
答案
1.40
