87×27-27×27+41×27-21简便运算怎么算?

求大师解答
2024-12-13 16:27:18
推荐回答(2个)
回答1:

亲,计算过程如下,参考一下吧!


87×27-27×27+41×27-21

=(87-27+41)x27-21

=101x27-21

=(100+1)x27-21

=100x27+27-21

=2700+(27-21)

=2700+6

=2706

回答2:

87×27-27×27+41×27-21
=27×(87-27+41)-21
=27×(101)-21
=27×(100+1)-21
=27×100+27×1-21
=2700+27-21
=2700+(27-21)
=2700+6
=2706