八点1÷9+8点1÷2+0点05的简便运算?

2025-12-03 21:17:40
推荐回答(3个)
回答1:

8.1÷9+8.1÷2+0.05
=0.9+(4.05+0.05)
=0.9+4.1
=5

回答2:

8.1÷9+8.1÷2+0.05
=0.9+4.05+0.05
=0.9+(4.05+0.05)
=0.9+4.1
=5

回答3:

8.1/9+8.1/2+0.05
=0.9+4.05+0.05
=0.9+4.1
=5