3.8+4.29+2.1+4.2 能简算的要简算 3.8+4.29+2.1+4.2

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3.8+4.29+2.1+4.2能简算的要简算3.8+4.29+2.1+4.23.8+4.29+2.1+4.2能简算的要简算3.8+4.29+2.1+4.23.8+4.29+2.1+4.2能简算的要简

3.8+4.29+2.1+4.2 能简算的要简算 3.8+4.29+2.1+4.2
3.8+4.29+2.1+4.2 能简算的要简算
3.8+4.29+2.1+4.2

3.8+4.29+2.1+4.2 能简算的要简算 3.8+4.29+2.1+4.2
太简单了吧
3.8+4.29+2.1+4.2
=(3.8+4.2)+(4.29+2.1)
=8+6.39
=14.39