1.5x0.32x1.25(用简便方法计算)5.24+5.24x99(用简便方法计算)0.8x[1

2024-11-22 23:19:56
推荐回答(3个)
回答(1):

1.5×0.32×1.25
=(1.5×0.4)×(0.8×1.25)
=0.6×1
=0.6
5.24+5.24×99
=5.24×(1+99)
=5.24×100
=524
0.8×[13-(3.12+5.28)]
=0.8×(13-8.4)
=0.8×4.6
=(1-0.2)×4.6
=4.6-0.92
=3.68
7.45×5.2÷2.6
=7.45×(5.2÷2.6)
=7.45×2
=14.9

回答(2):

(1.5x0、4)(0、8x1、25)

回答(3):

(1.5×0.4)×(0.8×1.25)