3()3()3()3() =5应该填什么运算符号 =7 =2 =4 =8

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3()3()3()3()=5应该填什么运算符号=7=2=4=83()3()3()3()=5应该填什么运算符号=7=2=4=83()3()3()3()=5应该填什么运算符号=7=2=4=83+3-3/3

3()3()3()3() =5应该填什么运算符号 =7 =2 =4 =8
3()3()3()3() =5应该填什么运算符号 =7 =2 =4 =8

3()3()3()3() =5应该填什么运算符号 =7 =2 =4 =8
3+3-3/3=5
3+3+3/3=7
3/3+3/3=2
3*3-3/3=8

(3+3)/3+3=2+3=5
3+3+3/3=6+1=7
3/3+3/3=1+1=2

(3*3+3)/3=4
3+3+3/3=7
3/3+3/3=2
3*3-3/3=8

(3+3)÷ 3+3=5
3÷3+3+3=7
3÷3+3÷3=2
3×3-3÷3=8
(3×3+3)÷3=4