如题所述
22X46十22x56一22x2
=22*(46+56-2)
=22*100
=2200
=22*(46+56-2)
=22*100
=2200
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第1个回答 2022-12-13
乘法分配律为:两个数的和与一个数相乘,先将它们与这个数分别相乘,再相加,积不变.即:(a+b)×c=a×c+b×c.反过来则:a×c+b×c=(a+b)×c
22× 46+22×56-22×2
= 22× ( 46+56-2)
= 22×100
=2200
22× 46+22×56-22×2
= 22× ( 46+56-2)
= 22×100
=2200