3.75+2.10+4.25-1.10的简便运算

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3.75+2.10+4.25-1.10的简便运算

=(3.75+4.25)+(2.10-1.10)
=8+1
=9

3.75+2.10+4.25-1.10
=(3.75+4.25)+(2.10-1.10)
=8+1
=9