49×101用乘法分配率怎么作?

2024-11-25 02:42:29
推荐回答(5个)
回答1:

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
49×101
= 49× ( 100+1)
= 49×100+49
= 4900+49
= 4949

回答2:

解:49x101=49x(100+1)
=49x100+49x1
=4900+49
=4949

回答3:

49×101
=49×(100+1)
=49×100+49
=4900+49
=4949

回答4:

49x101
=49x(100+1)
=4900+49
=4949

回答5:

49×101
=49×(100+1)
=49×100+49×1
=4900+49
=4949