0.6×0.8=
0.27÷0.003=
8.64÷8=
0.7-0.7×0.7=
1.25×8=
0.36÷9=
0.25×40=
2.3×0.4÷2.3×0.4=
0.3×0.2=
12.5×4=
4.9÷0.01=
0.14×50=
0.75×10=
2.1÷100=
0.1÷10=
9.1÷1.3=
0.5×0.4=
6.4÷0.08=
1.2÷0.24=
7.5÷2.5×4=
0.012=
12.01÷0.1=
a+a+6=
3.7×0.8÷3. 7×0.8=
梦梦是这样估算的:13.4≈13 35.2≈35 35×0.8=28(元)
13×2+28+46=100(元),够。
3.2÷0.01= 5.6+3.99= ÷ =
× = 4.1+1÷2=