简便运算;10.51-(2.67-2.49)

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简便运算;10.51-(2.67-2.49)
简便运算;10.51-(2.67-2.49)

简便运算;10.51-(2.67-2.49)
10.51-(2.67-2.49)
=10.51+2.49-2.67
=13-2.67
=10.33
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=(10.51+2.49)-2.67
=13-2.67
=10.33

答案是:10.33

10.51-(2.67-2.49)
=10.51+2.49-2.67
=13-2.67
=10.33

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