简算10.2×5.5-2×0.55

2025-03-04 04:06:51
推荐回答(2个)
回答1:

10.2x5.5-2x0.55
=10.2x5.5-2x5.5x0.1
=5.5x(10.2-0.2)
=5.5x10
=55

回答2:


过程如图