$225\div5=$ $4.7\div0.5=$ $5 - 2.08=$
$0.625\times8=$ $5.3 - 2.5=$ $48\div24\%=$
$0.28 + 0.8=$ $\frac{3}{5}+\frac{3}{8}=$ $0.75\times\frac{8}{3}=$
$1.47\div7=$ $607 - 499=$ $22.5 + 7.5=$
$740 + 160=$ $32.4\times0.5=$ $\frac{4}{15}-\frac{4}{35}=$
$\frac{7}{13}\times\frac{39}{35}=$ $\frac{8}{5}\div\frac{2}{15}=$ $\frac{3}{4}\times\frac{8}{9}=$
$\frac{5}{6}\div\frac{11}{12}=$ $\frac{4}{9}+\frac{1}{6}=$ $\frac{3}{4}-\frac{7}{12}=$
$1 - 71\%=$ $\frac{1}{6}\times\frac{4}{33}=$ $32\times2.5=$
$\frac{12}{25}\times\frac{5}{3}=$ $\frac{7}{16}+\frac{1}{4}=$ $\frac{4}{9}\div\frac{5}{6}=$
$\frac{1}{2}-\frac{2}{7}=$ $\frac{3}{4}\div\frac{6}{5}=$ $\frac{5}{9}\times\frac{27}{40}=$

一、45 9.4 2.92
5 2.8 200
1.08 $\frac{39}{40}$ 2
0.21 108 30
900 16.2 $\frac{16}{105}$
$\frac{3}{5}$ 12 $\frac{2}{3}$
$\frac{10}{11}$ $\frac{11}{18}$ $\frac{1}{6}$
0.29 $\frac{2}{99}$ 80
$\frac{4}{5}$ $\frac{11}{16}$ $\frac{8}{15}$
$\frac{3}{14}$ $\frac{5}{8}$ $\frac{3}{8}$

$24.6\div14\%\times56\%$ $\frac{6}{13}\div8+\frac{1}{8}\times\frac{7}{13}$ $20\times[(2.4 - 1.8)\div0.4 + 1.5]$

二、98.4 $\frac{1}{8}$ 60