37×1点5+6点3×3点七简便计算?
4个回答
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37×1.5+6.3×3.7
=37×1.5+0.63×37
=37×(1.5+0.63)
=37×2.13
=37×(2+0.1+0.03)
=37×2+37×0.1+37×0.03
=74+3.7+1.11
=77.7+1.11
=78.81
=37×1.5+0.63×37
=37×(1.5+0.63)
=37×2.13
=37×(2+0.1+0.03)
=37×2+37×0.1+37×0.03
=74+3.7+1.11
=77.7+1.11
=78.81
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展开全部
37×1.5+6.3×3.7
=37×(1.5+0.63)
=37×2.13
=40×2.13-3×2.13
=4×21.3-6.39
=85.2-7+0.61
=78.81
=37×(1.5+0.63)
=37×2.13
=40×2.13-3×2.13
=4×21.3-6.39
=85.2-7+0.61
=78.81
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展开全部
37×1.5+6.3×3.7
=(3.7×3)×0.5+(3.7×3)×2.1
=11.1×(0.5+2.1)
=11.1×2.6
=28.86
=(3.7×3)×0.5+(3.7×3)×2.1
=11.1×(0.5+2.1)
=11.1×2.6
=28.86
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展开全部
37x1.5+6.3x3.7
=3.7x15+6.3x3.7
=3.7x(15+6.3)
=3.7x21.3
=(4-0.3)x21.3
=4x21.3-0.3x21.3
=85.2-6.39
=78.81。
=3.7x15+6.3x3.7
=3.7x(15+6.3)
=3.7x21.3
=(4-0.3)x21.3
=4x21.3-0.3x21.3
=85.2-6.39
=78.81。
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