1.25x2.4
=1.25x2+1.25x0.4
=2.5+0.5
=3
1.25x0.32x2.5
=(1.25x0.8)x(0.4x2.5)
=1x1
=1
1.25x2.5x64
=1.25x8x(2.5x8)
=10x20
=200
0.5x4x2.33
=2x2.33
=4.66
祝您步步高升
期望您的采纳,谢谢
急,1.25×2.4 1.25×0.32×2.5 1
1个回答
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1.25×0.32×2.5
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