0.2×0.4=
2.5×0.4=
0.8×50=
12.5×8=
0.25×4=
3.99×1=
0×3.52=
(验算) 3.54×0.31= 0.97×3.02=
3.84×2.6≈(保留一位小数) 0.028×1.7≈(精确到百分位) (保留两位小数)
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
6.1×10= 6.4+4= 2.8×0.5= 1-0.25=
0.37+0.63= 4.5+100= 0.05×40= 0.52=
0.2+0.8= 8.8+0.12= 8.8-1.2= 0.38×5= 0.9-0.09=
7.4-0.77= 1.2×5= 1.6-0.4= 0.35+0.55= 0.125×8=
3.5×4= 2.5×2= 1.6×0.5= 0.125×0.8=
0.06×0.8= 1.3×0.07= 0.31+0.69= 9-5.3-0.7=
3.2÷0.01= 2.2×9.9= 305-199=
2.05×4= 8×12.5%=