632-278-(232-122)的简便计算

2024-11-15 22:51:44
推荐回答(3个)
回答(1):

    632-278-(232-122)

    =632-278-232+122

    =(632+122)-(278+232)

    =754-510

    =244

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回答(2):

=632-278-232+122=632-232-(278+122)=400-400=0

回答(3):

632-278-(232-122)
=632-278-232+122
=400-278+122
=122+122
=244.