布艺沙发多久没甲醛:5个5算24不能重复使用,只准用加减乘除

来源:百度文库 编辑:神马品牌网 时间:2024/05/06 10:10:01

[5-(5÷5÷5)]×5
=(5-0.2)×5
=4.8x5
=24

{5-[5÷(5×5)]}×5
=(5-0.2)×5
=4.8×5
=24

(5-5÷5)×5+5

(5×5×5-5)÷5
=(125-5)÷5
=120÷5
=24

5÷5=1 1 ÷ 5=0.2 5-0.2=4.8 4.8x5=24

<5-(5÷5÷5)>×5

1: 5 × 5 - 5 ÷ 5
2: (5 × 5) - 5 ÷ 5
3: 5 × 5 -(5 ÷ 5)
4: (5 × 5) - (5 ÷ 5)