5.2×3=
0.7×0.9=
0.72÷0.08=
1.28÷4=
例:0.36=4×0.09 0.36=1.2×0.3 0.36=0.18×2
1.44
x÷2.4=25
x=
3.26×59=
7.52÷47=
4×8= 12×3= 25×9=
0.4×8= 12×0.3= 0.25×9=