《2025年阳光同学计算小达人六年级数学上册苏教版》

1. 直接写出得数。(建议2分钟完成)
$\frac{2}{5}÷\frac{3}{5}=$$\frac{2}{3}$
$8×\frac{1}{16}=$$\frac{1}{2}$
$\frac{3}{7}÷6=$$\frac{1}{14}$
$\frac{9}{8}-\frac{1}{4}=$$\frac{7}{8}$
$\frac{5}{6}×\frac{3}{20}=$$\frac{1}{8}$
$\frac{1}{7}×\frac{1}{8}=$$\frac{1}{56}$
$\frac{5}{9}×\frac{3}{8}=$$\frac{5}{24}$
$5÷\frac{5}{7}=$7
$\frac{4}{5}+\frac{1}{5}=$1
$\frac{8}{15}×\frac{5}{16}=$$\frac{1}{6}$
$\frac{3}{5}-\frac{1}{6}=$$\frac{13}{30}$
$\frac{16}{15}÷4=$$\frac{4}{15}$
$75×\frac{4}{5}=$60
$\frac{5}{7}×\frac{2}{3}=$$\frac{10}{21}$
$14÷\frac{7}{15}=$30
$\frac{16}{35}÷\frac{4}{7}=$$\frac{4}{5}$
$\frac{5}{54}×6=$$\frac{5}{9}$
$\frac{7}{9}×\frac{9}{14}=$$\frac{1}{2}$
$\frac{2}{5}÷0.4=$1
$\frac{7}{16}÷\frac{16}{7}=$$\frac{49}{256}$

答案： $\frac{2}{3}$ $\frac{1}{2}$ $\frac{1}{14}$ $\frac{7}{8}$ $\frac{1}{8}$ $\frac{1}{56}$ $\frac{5}{24}$ 7 1 $\frac{1}{6}$ $\frac{13}{30}$ $\frac{4}{15}$ 60 $\frac{10}{21}$ 30 $\frac{4}{5}$ $\frac{5}{9}$ $\frac{1}{2}$ 1 $\frac{49}{256}$

2. 计算下面各题。(建议5分钟完成)
$\frac{3}{5}÷9÷\frac{1}{15}$
$\frac{9}{5}×\frac{2}{3}÷\frac{27}{25}$
$\frac{9}{35}×16÷\frac{4}{5}$
$\frac{5}{8}÷\frac{13}{16}×\frac{13}{14}$
$\frac{8}{3}×\frac{27}{4}×\frac{1}{24}$
$\frac{5}{8}÷\frac{5}{28}×\frac{9}{14}$

答案： $\frac{3}{5}÷9÷\frac{1}{15}=\frac{3}{5}×\frac{1}{9}×15=\frac{1}{15}×15=1$
$\frac{9}{5}×\frac{2}{3}÷\frac{27}{25}=\frac{6}{5}×\frac{25}{27}=\frac{10}{9}$
$\frac{9}{35}×16÷\frac{4}{5}=\frac{144}{35}×\frac{5}{4}=\frac{36}{7}$
$\frac{5}{8}÷\frac{13}{16}×\frac{13}{14}=\frac{5}{8}×\frac{16}{13}×\frac{13}{14}=\frac{10}{14}=\frac{5}{7}$
$\frac{8}{3}×\frac{27}{4}×\frac{1}{24}=18×\frac{1}{24}=\frac{3}{4}$
$\frac{5}{8}÷\frac{5}{28}×\frac{9}{14}=\frac{5}{8}×\frac{28}{5}×\frac{9}{14}=\frac{7}{2}×\frac{9}{14}=\frac{9}{4}$

提升练
用简便方法计算下面各题。
$\frac{1}{1×2}+\frac{1}{2×3}+\frac{1}{3×4}+…+\frac{1}{49×50}$

答案： $\frac{49}{50}$