作业帮75乘以1/76乘以77简算
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75乘以1/76乘以77简算
75乘以1/76乘以77简算
75乘以1/76乘以77简算
=（76-1）*1/76*(76+1)=(76²-1)*1/76=76-1/76=75又75/76
75乘以1/76乘以77
=75/76×（76+1）
=75/76×76+75/76×1
=75+75/76
=75又75/76
75× 1/76 ×77
=75 ×77 × 1/76
=（76-1） ×（76+1） × 1/76
=（76²-1）×1/76
=76²×1/76 -1×1/76
=76-1/76
=75又75/76
75×1/76×77
=75×1/76×（76+1）
=75×（1+1/76）
=75又75/76
75乘以1/76乘以77简算
77乘以77乘以1/76减1/76
77乘以77乘以1/76减1/76
75乘以76分之一乘以77如何简便计算
1乘以2乘以3+2乘以3乘以4+3乘以4乘以5+...+7乘以8乘以9
75分之1乘以80
(21乘以7分之3+7分之4乘以21)乘以4分之1=简算
写得数:3/5乘以1/4,11/25乘以5/33,六乘以1/3乘以2/5,77/100乘以零乘以写得数:3/5乘以1/4,11/25乘以5/33,六乘以1/3乘以2/5,77/100乘以零乘以8/9,答案请写在纸上,
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