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  • 甲數(shù)比乙數(shù)少b,當(dāng)甲數(shù)是a時(shí),乙數(shù)是_;當(dāng)乙數(shù)是a時(shí),甲數(shù)是_;當(dāng)甲、乙兩數(shù)的和是a時(shí),甲數(shù)是_,乙數(shù)是_.

    甲數(shù)比乙數(shù)少b,當(dāng)甲數(shù)是a時(shí),乙數(shù)是______;當(dāng)乙數(shù)是a時(shí),甲數(shù)是______;當(dāng)甲、乙兩數(shù)的和是a時(shí),甲數(shù)是______,乙數(shù)是______.
    數(shù)學(xué)人氣:640 ℃時(shí)間:2020-04-24 11:20:51
    優(yōu)質(zhì)解答
    甲數(shù)比乙數(shù)少b,當(dāng)甲數(shù)是a時(shí),乙數(shù)是a+b;當(dāng)乙數(shù)是a時(shí),甲數(shù)是a-b;當(dāng)甲、乙兩數(shù)的和是a時(shí),甲數(shù)是(a-b)÷2,乙數(shù)是(a+b)÷2.
    故答案為:a+b,a-b,(a-b)÷2,(a+b)÷2.
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