3⼀25×99+3⼀25的简便算法

2025-04-13 16:49:48
推荐回答(4个)
回答1:


见图

回答2:

12

回答3:

3/25×99+3/25
=3/25×99+3/25×1
=3/25×(99+1)
=3/25×100
=3×4
=12

回答4:

=3/25X(99+1)
=3/25X100
=12