Question

48.3×0.56+3.38×5.6+0.038×13的简便方法？

Answer 1

48.3*0.56+3.38*5.6+0.038*13
=48.3*0.56+33.8*0.56+0.038*13
=0.56*（48.3+33.8）+0.038*13
=0.56*82.1+0.038*13
运用了乘法分配律

Answer 2

48.3×0.56+3.38×5.6+0.038×13

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=48.3×0.56+33.8×0.56+0.494

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=0.56×(48.3+33.8)+0.494

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=0.56×82.1+0.494

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=45.976+0.494

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=46.47

Answer 3

46.47

Answer 4

48.3×0.56+3.38×5.6+0.038×13的简便方法？
48.3×0.56+3.38×5.6+0.038×13
=0.001x[56x(483+338)+38x13]
=0.001x[56x821+38x13]
=0.001x2x[28x821+19x13]
=0.002x[30x821-2x821+20x13-13]
=0.002x[24630-1642+260-13]
=0.002x[24890-1655]
=0.002x23235
=46.470

Answer 5

48.3×0.56+3.38×5.6+0.038×13
=4.83×5.6+3.38×5.6+0.038×13
=5.6×（4.83+3.38）+0.038×13
=5.6×8.21+0.038×13=46.47
=46.47