7.7×5.6+46×0.28的简便计算?
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7.7×5.6+46×0.28
=7.7×2×2.8+4.6×2.8
=15.4×2.8+4.6×2.8
=(15.4+4.6)×2.8
=20×2.8
=56
=7.7×2×2.8+4.6×2.8
=15.4×2.8+4.6×2.8
=(15.4+4.6)×2.8
=20×2.8
=56
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7.7×5.6+46×0.28
=77×0.56+23×0.56
=(77+23)×0.56
=100×0.56
=56
=77×0.56+23×0.56
=(77+23)×0.56
=100×0.56
=56
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7.7x5.6+46x0.28简便运算:
7.7x5.6+46x0.28
=7.7x5.6+2.3x20x0.28
=7.7x5.6+2.3x5.6
=5.6x(7.7+2.3)
=5.6x10
=56
7.7x5.6+46x0.28
=7.7x5.6+2.3x20x0.28
=7.7x5.6+2.3x5.6
=5.6x(7.7+2.3)
=5.6x10
=56
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7.7x5.6+46x0.28
=7.7x5.6+2.3x5.6
=(7.7+2.3)x5.6
=10x5.6
=56
=7.7x5.6+2.3x5.6
=(7.7+2.3)x5.6
=10x5.6
=56
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7.7x5.6+46x0.28
=7.7x5.6+2.3x20x0.28
=7.7x5.6+2.3x5.6
=(7.7+2.3)x5.6
=56
=7.7x5.6+2.3x20x0.28
=7.7x5.6+2.3x5.6
=(7.7+2.3)x5.6
=56
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