456加399用递等式计算该怎么计算?

2025-04-15 17:33:29
推荐回答(2个)
回答1:

456加399用递等式计算该怎么计算?

456+399
=456+400-1
=855

回答2:

456+399
=456+400-1
=856-1
=855