99×15 99的简便运算?

2025-02-25 16:12:30
推荐回答(3个)
回答1:

简便计算
99×15+ 99
=99x(15+1)
=(100-1)x16
=100x16-16
=1600-16
=1584

回答2:

=99*(15+1)
=99*16
=(100-1)*16
=1600-16
=1584

回答3:

99×15+99
=99X(15+1)
=99X16
=(100-1)X16
=100X16-1X16
=1600-16
=1584