
26×15.6+15.7×24简便计算 5
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2018-09-13 · 知道合伙人教育行家
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26×15.6+15.7×24简便计算
=26x15.6+15.6x24+0.1x24
=(26+24)x15.6+2.4
=50x15.6+2.4
=780+24
=782.4
=26x15.6+15.6x24+0.1x24
=(26+24)x15.6+2.4
=50x15.6+2.4
=780+24
=782.4
展开全部
=26×15.6+15.6×24+0.1×24
=(26+24)×15.6+2.4
=50×15.6+2.4
=78+2.4
=80.4
=(26+24)×15.6+2.4
=50×15.6+2.4
=78+2.4
=80.4
追答
写错了,抱歉,最后两步是780+2.4=782.4
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展开全部
26×15.6+15.7×24
=26×15.6+(15.6+0.1)×24
=26×15.6+15.6×24+0.1×24
=(26+24)×15.6+2.4
=50×15.6+2.4
=780+2.4
=782.4
=26×15.6+(15.6+0.1)×24
=26×15.6+15.6×24+0.1×24
=(26+24)×15.6+2.4
=50×15.6+2.4
=780+2.4
=782.4
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