0.56乘4.5加上5.5乘0.44拖式计算怎么简算

2025-03-23 02:59:24
推荐回答(2个)
回答1:

0.56 x 4.5+5.5x0.44
=0.56 x 4.5+(4.5+1)x0.44
=0.56x4.5+4.5x0.44+0.44
=4.5*(0.56+0.44)+0.44
=4.5*1+0.44
=4.94

回答2:

0.56x4.5+5.5x0.44
=0.56x4.5+0.44x4.5+0.44
=(0.56+0.44)x4.5+0.44
=4.5+0.44
=4.94