3()3()3()3=1填运算符号 加 减 乘 除 括号.3()3()3()3=13()3()3()3=23()3()3()3=33()3()3()3=43()3()3()3=5

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3()3()3()3=1填运算符号 加 减 乘 除 括号.3()3()3()3=13()3()3()3=23()3()3()3=33()3()3()3=43()3()3()3=5

3()3()3()3=1填运算符号 加 减 乘 除 括号.3()3()3()3=13()3()3()3=23()3()3()3=33()3()3()3=43()3()3()3=5
3()3()3()3=1填运算符号 加 减 乘 除 括号.
3()3()3()3=1
3()3()3()3=2
3()3()3()3=3
3()3()3()3=4
3()3()3()3=5

3()3()3()3=1填运算符号 加 减 乘 除 括号.3()3()3()3=13()3()3()3=23()3()3()3=33()3()3()3=43()3()3()3=5
3*3/3/3=1
3/3+3/3=2
(3-3)*3+3=3
(3*3+3)/3=4
3-3/3+3=5

3-3+3÷3=1
(3×3-3)÷3=2
(3+3+3)÷3=3
(3×3+3)÷3=4
3+(3+3)÷3=5

3-3+3/3=1
3/3+3/3=2
(3-3)*3+3=3
(3+3*3)/3=4
(3+3)/3+3=5

(3/3)x(3/3)=1
(3/3)+(3/3)=2
3x3-3-3=3
(3x3+3)/3=4
(3+3)x3/3=6
(3+3)/3+3=5

(3+3)/(3+3)=1
(3*3-3)/3=2
(3*3-3)-3=3
3/3*3+3=4
(3+3)/3+3=5

(3/3)*(3/3)=1
(3/3)+(3/3)=2
3*3-3-3=3
(3*3+3)/3=4
(3+3)/3+3=5

3-(3-3/3)=1
3/3+3/3=2
(3+3+3)/3=3
(3*3+3)/3=4
(3+3)/3+3=5
一定按运算顺序,先乘除,后加减