32.57x7.8+2.3x32.57-32.57怎么简算?
3个回答
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32.57×7.8+2.3×32.57一3.257
=32.57×(7.8+2.3一0.1)
=32.57×10
=325.7
=32.57×(7.8+2.3一0.1)
=32.57×10
=325.7
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展开全部
32.57x7.8+2.3x32.57-32.57
=32.57(7.8+2.3-1)
=32.57*9.1
=32.57(9+0.1)
=32.57*9+32.57*0.1
=293.13+3.257
=296.387
=32.57(7.8+2.3-1)
=32.57*9.1
=32.57(9+0.1)
=32.57*9+32.57*0.1
=293.13+3.257
=296.387
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