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1.2×(9.6÷2.4)÷4.8怎么简便运算

1.2*9.6/4.8/2.4=1

1

9.6÷24=0.41.2×0.4=0.480.48÷4.8=0.1

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

0.05

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

4.8×3.15÷2.4 =4.8÷2.4×3.15 =2×3.15 =6.3

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