1.2﹣ =
÷ =
×2.7=
1 ﹣0.8=
40×25%=
498+605≈
3.3+2=
1.6×5=
36.6÷6=
631÷72≈
213+199= 52-0.8= 12.5××0.08= 101×45=
0.3×0.2=
7.2÷0.4=
=
8.75﹣(0.75+3.4)=
=
×5=
- =
4.8÷12=
206×4=
10﹣0.09=
﹣ ÷ =
× =
× = 4÷0.8= 3﹣ = 0.23=
÷ = 786﹣298= 25×0.7×4= 8.7+7=
( ﹣0.375)÷ = × ÷ × =