2.5x0.32x12.5的简便计算

2024-12-03 15:04:13
推荐回答(5个)
回答(1):

解:原式=2.5*0.4*0.8*12.5
=1*10
=10

回答(2):

=2.5x4x0.8x12.5
=10x0.08x12.5
=0.8x12.5
=10

回答(3):

2.5×0.32×12.5
=2.5×0.4×0.8×12.5
=1×10
=10

回答(4):

5.1×O.O8×12.5

回答(5):

0.32×12.5