3.14×4²=
0.01²=
百分数
35%
0.2%
小数
2.5
0.05
分数
3.14×6= 2×3.14×12= + =
0÷20%= 60×30%= 25÷40%=
36× = ÷ = 3× ÷3× =
÷ = ÷ = ×18= × =
- = + = 0× = ÷ =
÷7= =
24× = 40÷10%= 100×71%= 60×50%=