52X103一53X3简便计箅?

2025-03-30 01:27:45
推荐回答(2个)
回答(1):

打错数字了吧
53×103-53×3
=53×(103-3)
=53×100
=5300

回答(2):

52×103-52×3-3
=52×(103-3)-3
=52×100-3
=5200-3
=5197