7.658×85
0 15.6×13=
0.18×15=
0.025×14=
3.06×36=
0.04×0.12=
5.76×3=
7.15×22
3.68×0.25
3.7×0.016
13.76×0.8=
5.2×0.6
8.4×1.3
6.4×0.5
4.48×0.4
5.25×5
35.4×4.2
0.042×0.54
0.76×0.32
0.25×0.046
2.52×3.4
1.08×25
0.12×0.5×0.16=
4.8×0.25=
二 脱式计算(能简算的要简算)
2.5×7.1×4
16.12×99+16.12
5.2×0.9+0.9
7.28×99+7.28