32.4×1.2+16.2用简便方法怎么计算
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32.4×1.2+16.2
=16.2×2×1.2+16.2
=16.2×(2.4+1)
=16.2×3.4
=55.08
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拆分法,把32.4拆分成16.2×2
32.4×1.2+16.2
=16.2×1.2+16.2
=16.2×(1.2+1)
=16.2×2.2
=35.64
32.4×1.2+16.2
=16.2×1.2+16.2
=16.2×(1.2+1)
=16.2×2.2
=35.64
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32.4×1.2+16.2
=16.2×2.4+16.2
=16.2×(2.4+1)
=16.2×3+16.2×0.4
=48.6+6.48
=55.08
=16.2×2.4+16.2
=16.2×(2.4+1)
=16.2×3+16.2×0.4
=48.6+6.48
=55.08
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32.4×1.2+16.2
=16.2×2.4+16.2
=16.2×(3+0.4)
=16.2×3+16.2×0.4
=48.6+6.48
=55.08
=16.2×2.4+16.2
=16.2×(3+0.4)
=16.2×3+16.2×0.4
=48.6+6.48
=55.08
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