(170+1/12)×1/13+11/12简便运算
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(170+1/12)×1/13+11/12简便运算
(170+1/12)×1/13+11/12简便运算
(170+1/12)×1/13+11/12简便运算
(170+1/12)×1/13+11/12
=(169+13/12)×1/13+11/12
=169×1/13+13/12×1/13+11/12
=13+(1/12+11/12)
=13+1
=14
[170+1 /12] ×1 /13+11 /12
(170+1/12)×1/13+11/12简便运算
简算:(170+1/12)*(1/13)
170又12分之1除以13
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