$\frac{12}{25} \times \frac{5}{6} =$ $\frac{1}{3} - \frac{2}{9} =$ $8.4 \div 70 =$
$0.7 \div 0.8 =$ $\frac{3}{8} \times \frac{2}{3} =$ $\frac{7}{15} - \frac{2}{35} =$
$8.8 - 2.8 =$ $3.6 \div \frac{9}{10} =$ $2.198 \div 3.14 =$
$\frac{10}{21} \div \frac{5}{6} =$ $65\% + 45\% =$ $\frac{3}{13} \times \frac{13}{6} =$
$128 \times \frac{3}{8} =$ $3.6 \div 12 =$ $5.9 - 0.13 =$
$0.5^{2} - 0.3^{2} =$ $3.14 \times 200 =$ $\frac{3}{7} + \frac{5}{8} =$
$2.4 \div 24\% =$ $3.6 + 4.04 =$ $62.5\% \times \frac{4}{5} =$
$2.26 + 0.14 =$ $\frac{7}{24} - \frac{1}{8} =$ $25.12 \div 3.14 =$
$\frac{8}{15} \div \frac{4}{5} =$ $4.75 \times 0.2 =$ $\frac{7}{18} + \frac{5}{12} =$
$\frac{1}{2} + \frac{1}{3} =$ $\frac{5}{3} \div \frac{5}{9} =$ $\frac{7}{10} \div \frac{1}{5} =$

$\frac{2}{5}$ $\frac{1}{9}$ 0.12
$\frac{7}{8}$ $\frac{1}{4}$ $\frac{43}{105}$
6 4 0.7
$\frac{4}{7}$ 110% $\frac{1}{2}$
48 0.3 5.77
0.16 628 $\frac{59}{56}$
10 7.64 $\frac{1}{2}$
2.4 $\frac{1}{6}$ 8
$\frac{2}{3}$ 0.95 $\frac{29}{36}$
$\frac{5}{6}$ 3 $\frac{7}{2}$

$209 + 896$ $0.702 \times 15$ $9.6 \div 0.39$
（得数保留两位小数）

1105 10.53 24.62