0.6×0.5=0.57-0.5=2.4×50=1.5×0.6=10-3.97=
0.24×0.2=800×1.25=9.6×0.01=0.05×1.6=2.17×0.1=
0.02是0.2的,
0.02是2的。
移动位。
2.1×3.9= × =81.9 0.21× =0.819
8.6×0.998.6 5.28×1.015.28
0.1×0.10.2 0.27×1.32.3×0.27
10×0.1100×0.01 4.39×1043.9×0.1