$2.512\div3.14=$ $1.625 - 0.62=$ $4.18\times20=$
$0.8\times1.5=$ $\frac{5}{9}\div\frac{5}{7}=$ $\frac{3}{4}+\frac{9}{10}=$
$4.8\div0.16=$ $\frac{2}{3}-\frac{5}{8}=$ $480\times20\%=$
$1000 - 799=$ $3.14\times0.4=$ $3\div0.5=$
$\frac{6}{25}\times\frac{5}{18}=$ $\frac{4}{7}-\frac{1}{4}=$ $\frac{4}{15}+\frac{2}{5}=$
$3.6\div0.5=$ $1 - 0.82=$ $\frac{3}{25}\times\frac{5}{12}=$
$\frac{2}{5}+\frac{2}{15}=$ $0.8\div0.16=$ $\frac{5}{7}\div\frac{3}{7}=$
$0.6\div0.02=$ $0.9\times200=$ $9.1 - 1.08=$
$3.6 + 1.5=$ $5\div10\%=$ $\frac{2}{3}+\frac{1}{7}=$
$\frac{4}{15}\div\frac{6}{5}=$ $282 - 156=$ $0.375\times4=$

0.8 1.005 83.6
1.2 $\frac{7}{9}$ $\frac{33}{20}$
30 $\frac{1}{24}$ 96
201 1.256 6
$\frac{1}{15}$ $\frac{9}{28}$ $\frac{2}{3}$
7.2 0.18 $\frac{1}{20}$
$\frac{8}{15}$ 5 $\frac{5}{3}$
30 180 8.02
5.1 50 $\frac{17}{21}$
$\frac{2}{9}$ 126 $\frac{3}{2}$

$\frac{4}{5}-x=\frac{3}{5}$ $x + 40\%x = 28$ $2.5\times8 + 4x = 100$

$x = \frac{1}{5}$ $x = 20$ $x = 20$