作业帮(3.2+0.128)/0.8简算赶快
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(3.2+0.128)/0.8简算赶快
(3.2+0.128)/0.8简算
赶快
(3.2+0.128)/0.8简算赶快
(0.8*4+0.8*0.16)/0.8
=0.8(4+0.16)/0.8
=4.16
4.16
(3.2+0.128)/0.8
=(0.8*4+0.4*0.32)/0.8
=(0.8*4+0.4*0.8*0.4)/0.8
=4+0.16
=4.16
4.16
=(0.8×4+0.4×0.32)÷0.8
=(0.8×4+0.4×0.8*0.4)÷0.8
=4+0.16
=4.16