2.8乘以0.65+2.8乘以0.35简算
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2.8乘以0.65+2.8乘以0.35简算2.8乘以0.65+2.8乘以0.35简算2.8乘以0.65+2.8乘以0.35简算2.8呀~2.8x(0.65＋0.35)＝2.8x1=2.82.8....
2.8乘以0.65+2.8乘以0.35简算
2.8乘以0.65+2.8乘以0.35
简算
2.8乘以0.65+2.8乘以0.35简算
2.8呀~
2.8x(0.65＋0.35)＝2.8x1=2.8
2.8.......
2.8
2.8*1=2.8
2.8x(0.65＋0.35)＝2.8x1=2.8
2.8*0.65+2.8*0.35
=2.8*(0.65+0.35)
=2.8*1
=2.8
2.8><0.65+2.8><0.35
=2.8><(0.65+0.35)
=2.8><1
=2.8
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