8.1÷[1.8×(3.4-2.9)]怎么算

2025-06-26 19:06:52
推荐回答(2个)
回答1:

先括号里的,在算中括号,最后除

回答2:

8.1÷[1.8×(3.4-2.9)]
=8.1÷(1.8x0.5)
=8.1÷0.9
=9