35+34-33-32+31+30-29-28+27+26-25-24+23+22-21-20怎么计算方便
人气:392 ℃ 时间:2019-08-20 01:13:13
解答
原式=(35-33)+(34-32)+(31-29)+(30-28)+(27-25)+(26-24)+(23-21)+(22-20)
=2+2+2+2+2+2+2+2
=16
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