4.3x67+57x4.3-86x1.2,怎么简便计算?
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4.3×67+57×4.3-86×1.2简便计算:
4.3×67+57×4.3-86×1.2
=4.3×67+4.3×57-43×2×1.2
=4.3×67+4.3×57-4.3×24
=4.3×(67+57-24)
=4.3×100
=430
4.3×67+57×4.3-86×1.2=430。
4.3×67+57×4.3-86×1.2
=4.3×67+4.3×57-43×2×1.2
=4.3×67+4.3×57-4.3×24
=4.3×(67+57-24)
=4.3×100
=430
4.3×67+57×4.3-86×1.2=430。
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这道题可以这样计算:
4.3×67+57×4.3-86×1.2
=4.3×67+57×4.3-4.3×20×1.2
=4.3×(67+57+24)
=4.3×148
4.3×67+57×4.3-86×1.2
=4.3×67+57×4.3-4.3×20×1.2
=4.3×(67+57+24)
=4.3×148
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解:原式=4.3Ⅹ67+57x4.3一4.3x24
=4.3x(67+57一24)
=4.3x(67十33)
=4.3x100
=430
=4.3x(67+57一24)
=4.3x(67十33)
=4.3x100
=430
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这道题的简便计算具体过程如下:
4.3*67+57*4.3一86*1.2
=4.3*67+57*4.3一4.3*24
=4.3*(67+57一24)
=4.3*100
=430
4.3*67+57*4.3一86*1.2
=4.3*67+57*4.3一4.3*24
=4.3*(67+57一24)
=4.3*100
=430
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4.3×67+57×4.3-86×1.2=4.3×67+57×4.3-4.3×20×1.2=4.3×(67+57-24)=4.3×100=430
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