4.3×1.02简便运算

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4.3×1.02简便运算

4.3×1.02简便运算
4.3×1.02简便运算

4.3×1.02简便运算
原式
=4.3×(1+0.02)
=4.3×1+4.3×0.02
=4.3+0.086
=4.386

4.3×1.02
=4.3×(1+0.02)
=4.3×1+4.3×0.02
=4.3+0.086
=4.386.

4.3×1.02
=(4+0.3)×1.02=4.08+0.306=4.386