14.8×16= 0.148×16= 148×0.16=。
8.3×0.88.3 2.5×1.61.6×2.5 3.7×0.293.9×0.34
8.3×0.80.8 0.98×11 0.45×5245×0.52
0.4×2.5=
0.56+0.4=
1.3×100=
2.6×0.3=
9.5+0.5×8=
17-4×0.9=
2.6×4.9= 7.5×0.62= 1.08×0.22≈(保留两位小数)
23.5×17.6-23.5×7.6 2.5×3.2×1.25 7.5+2.5×4 43.56×7.2+7.2×57.44-7.2