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1.2×(9.6÷2.4)÷4.8怎么简便运算

1

1.2*9.6/4.8/2.4=1

=1.2×4÷4.8=4.8÷4.8=1

1.2×(9.6÷2.4)÷4.8 =1.2x4÷4.8 =4.8÷4.8 =1

9.6÷24=0.41.2×0.4=0.480.48÷4.8=0.1

(9.6×3.4×4.8)÷(3.2×1.7×2.4) = (3.2×3×1.7×2×2.4×2)÷(3.2×1.7×2.4) =(3×2×2)÷1 =12

原式=2.4X2X1.9➗2.4 =2X1.9 =3.8 将4.8拆成2.4X2,乘法分配律

先用4.8x乘以15再加上4.8x除以2.4

=9.6÷4.8x2.25 =2x2.25 =4.5

(4.8×7.5×8.1)÷(2.4×2.5×2.7) =(4.8÷2.4)×(7.5÷2.5)×(8.1÷2.7) =2×3×3 =18

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