63x73一63x63用简便计算

Question

如题所述

Answer 1

63x73一63x63=63x(73-63)=63x10=630
希望可以帮到你

Answer 2

=63x（73一63）=63x10=630

Answer 3

=63X(73-63)=63X10=630

Answer 4

63×73-63×63
=63×（73-63）
=63×10
=630本回答被网友采纳

Answer 5

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
63×73-63×63
= 63× ( 73-63）
=63 ×10
=630