
2个回答
2017-12-05 · 知道合伙人教育行家
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34.82+15.9-4.82(简算)
=34.82-4.82+15.9
=30+15.9
=45.9
43.5乘0.7-4.36乘6(简算)
=43.5x0.7-43.6x0.6
=43.5x0.7-43.5x0.6-0.1x0.6
=43.5x(0.7-0.6)-0.06
=43.5x0.1-0.06
=4.35-0.06
=4.29
=34.82-4.82+15.9
=30+15.9
=45.9
43.5乘0.7-4.36乘6(简算)
=43.5x0.7-43.6x0.6
=43.5x0.7-43.5x0.6-0.1x0.6
=43.5x(0.7-0.6)-0.06
=43.5x0.1-0.06
=4.35-0.06
=4.29
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