✀用简便方法计算75 17×25?

2025-03-23 22:38:32
推荐回答(4个)
回答1:

75十17X25
=25X3十17X25
=25X(3十17)
=25X20
二500.

回答2:

75+17×25
=25×3+17×25
=25×(3+17)
=25×20
=500

回答3:

7517x5x5=37585x5=187925

回答4:

75+17×25
=25×3+17×25
=25×(3+17)
=25×20
=500