Question

9.8x0.72用脱式计算怎么算?

Answer 1

9.8×0.72的脱式计算可以这样算：
9.8×0.72
=（10-0.2）×0.72
=7.2-0.144
=7.056
它的脱式计算过程就是这样

Answer 2

可以换成（10-0.2）x0.72=10x0.72-0.2x0.72=7.2-0.144=7.056

Answer 3

9.8×0.72=10×0.72--0.2×0.72=7.2--0.144=7.056。用脱式计算答案是7.056。

Answer 4

9.8x0.72把9.8看作10x0.72一0.72Xo.2=7.2一0.144=6.056

Answer 5

9.8×0.72=（10－2）×0.72=10×0.72－2×0.72=7.2－1.44=5.76