$0.7\div3.5=$ $125\times0.8=$ $15\div7 - \frac{5}{7}=$
$402 - 356=$ $\frac{5}{7}\div\frac{10}{21}=$ $80\%\times40\%\times50\%=$
$48\div0.48=$ $0.48 + 1.8=$ $1.6\times4\times5=$
$\frac{3}{8}\times\frac{32}{9}=$ $\frac{3}{8}\div\frac{5}{64}=$ $0.4\times6\div0.4\times6=$
$0.8\div0.16=$ $\frac{7}{9}\times\frac{5}{21}=$ $12 + 7\div19=$
$0.39 + 0.11=$ $7.19\div100=$ $6\div(\frac{1}{2} + \frac{1}{3})=$
$\frac{6}{5}\div\frac{18}{25}=$ $298 + 437=$ $1\div\frac{1}{3}\times1\div\frac{1}{3}=$
$2.17 - 1.29=$ $\frac{5}{18}\times\frac{4}{7}=$ $3.2\times2.5\times0.4=$
$2.43\div0.3=$ $440\div20=$ $4 - 1.25 - 1.75=$
$1 - 45\%=$ $50\%\times90\%=$ $12\times(\frac{1}{2} + \frac{1}{4})=$

0.2 100 $\frac{10}{7}$
46 $\frac{3}{2}$ 0.16
100 2.28 32
$\frac{4}{3}$ $\frac{24}{5}$ 36
5 $\frac{5}{27}$ $12\frac{7}{19}$
0.5 0.0719 $\frac{36}{5}$
$\frac{5}{3}$ 735 9
0.88 $\frac{10}{63}$ 3.2
8.1 22 1
0.55 0.45 9

$\frac{3}{4}:x = 12:0.3$ $\frac{10}{3}:x = \frac{4}{9}:\frac{4}{3}$ $\frac{5}{8}x - 25\%x = \frac{3}{2}$

$x = \frac{3}{160}$ $x = 10$ $x = 4$