Question

4个4填运算符等于1到9怎么做

Answer 1

一、只考虑加减乘除四种运算符的情况

1 结果为1的有:
4+4/4-4=1
4-4+4/4=1
4*4/4/4=1
4/4+4-4=1
4/4-4+4=1
4/4*4/4=1
4/4/4*4=1

2 结果为2的有:
4/4+4/4=2

3 结果为3的有:
无

4 结果为4的有:
无

5 结果为5的有:
无

6 结果为6的有:
无

7 结果为7的有:
4+4-4/4=7
4-4/4+4=7

8 结果为8的有:
4+4+4-4=8
4+4-4+4=8
4+4*4/4=8
4+4/4*4=8
4-4+4+4=8
4*4-4-4=8
4*4/4+4=8
4/4*4+4=8

9 结果为9的有:
4+4+4/4=9
4+4/4+4=9
4/4+4+4=9

二、考虑含有括号的情况

1 结果为1的有:
(4+4-4)/4=1
(4+(4-4))/4=1
((4+4)-4)/4=1
(4+4)/(4+4)=1
4+4/4-4=1
4+(4/4)-4=1
(4+4/4)-4=1
4+(4/4-4)=1
(4+(4/4))-4=1
4+((4/4)-4)=1
4-4+4/4=1
(4-4)+4/4=1
4-4+(4/4)=1
(4-4)+(4/4)=1
(4-4+4)/4=1
((4-4)+4)/4=1
4-(4-4/4)=1
(4-(4-4))/4=1
4-(4-(4/4))=1
4*4/(4*4)=1
(4*4)/(4*4)=1
4*(4/(4*4))=1
4*4/4/4=1
(4*4)/4/4=1
4*(4/4)/4=1
(4*4/4)/4=1
4*(4/4/4)=1
(4*(4/4))/4=1
((4*4)/4)/4=1
4*((4/4)/4)=1
4/4+4-4=1
(4/4)+4-4=1
4/4+(4-4)=1
(4/4)+(4-4)=1
(4/4+4)-4=1
4/(4+4-4)=1
((4/4)+4)-4=1
4/((4+4)-4)=1
4/(4+(4-4))=1
4/4-4+4=1
(4/4)-4+4=1
(4/4-4)+4=1
4/(4-4+4)=1
((4/4)-4)+4=1
4/((4-4)+4)=1
4/4-(4-4)=1
(4/4)-(4-4)=1
4/(4-(4-4))=1
4/(4*4)*4=1
(4/(4*4))*4=1
4/4*4/4=1
(4/4)*4/4=1
4/4*(4/4)=1
(4/4)*(4/4)=1
(4/4*4)/4=1
4/(4*4/4)=1
((4/4)*4)/4=1
4/((4*4)/4)=1
4/(4*(4/4))=1
4/4/4*4=1
(4/4)/4*4=1
(4/4/4)*4=1
4/(4/4*4)=1
((4/4)/4)*4=1
4/((4/4)*4)=1
4/(4/4)/4=1
4/4/(4/4)=1
(4/4)/(4/4)=1
(4/(4/4))/4=1
4/(4/(4/4))=1

2 结果为2的有:
4-(4+4)/4=2
4-((4+4)/4)=2
4*4/(4+4)=2
(4*4)/(4+4)=2
4*(4/(4+4))=2
4/(4+4)*4=2
(4/(4+4))*4=2
4/4+4/4=2
(4/4)+4/4=2
4/4+(4/4)=2
(4/4)+(4/4)=2
4/((4+4)/4)=2

3 结果为3的有:
(4+4+4)/4=3
(4+(4+4))/4=3
((4+4)+4)/4=3
(4*4-4)/4=3
((4*4)-4)/4=3

4 结果为4的有:
4+(4-4)*4=4
4+((4-4)*4)=4
4+(4-4)/4=4
4+((4-4)/4)=4
4+4*(4-4)=4
4+(4*(4-4))=4
4-(4-4)*4=4
4-((4-4)*4)=4
4-(4-4)/4=4
4-((4-4)/4)=4
(4-4)*4+4=4
((4-4)*4)+4=4
4-4*(4-4)=4
4-(4*(4-4))=4
(4-4)/4+4=4
((4-4)/4)+4=4
4*(4-4)+4=4
(4*(4-4))+4=4

5 结果为5的有:
(4+4*4)/4=5
(4+(4*4))/4=5
(4*4+4)/4=5
((4*4)+4)/4=5

6 结果为6的有:
4+(4+4)/4=6
4+((4+4)/4)=6
(4+4)/4+4=6
((4+4)/4)+4=6

7 结果为7的有:
4+4-4/4=7
(4+4)-4/4=7
4+4-(4/4)=7
(4+4)-(4/4)=7
4+(4-4/4)=7
4+(4-(4/4))=7
4-4/4+4=7
4-(4/4)+4=7
(4-4/4)+4=7
(4-(4/4))+4=7
4-(4/4-4)=7
4-((4/4)-4)=7

8 结果为8的有:
4+4+4-4=8
(4+4)+4-4=8
4+(4+4)-4=8
4+4+(4-4)=8
(4+4)+(4-4)=8
(4+4+4)-4=8
4+(4+4-4)=8
(4+(4+4))-4=8
((4+4)+4)-4=8
4+((4+4)-4)=8
4+(4+(4-4))=8
4+4-4+4=8
(4+4)-4+4=8
4+(4-4)+4=8
(4+4-4)+4=8
4+(4-4+4)=8
(4+(4-4))+4=8
((4+4)-4)+4=8
4+((4-4)+4)=8
4+4-(4-4)=8
(4+4)-(4-4)=8
4+(4-(4-4))=8
4+4*4/4=8
(4+4)*4/4=8
4+(4*4)/4=8
4+4*(4/4)=8
(4+4)*(4/4)=8
4+(4*4/4)=8
((4+4)*4)/4=8
4+((4*4)/4)=8
4+(4*(4/4))=8
4+4/4*4=8
(4+4)/4*4=8
4+(4/4)*4=8
4+(4/4*4)=8
((4+4)/4)*4=8
4+((4/4)*4)=8
4+4/(4/4)=8
(4+4)/(4/4)=8
4+(4/(4/4))=8
4-4+4+4=8
(4-4)+4+4=8
4-4+(4+4)=8
(4-4)+(4+4)=8
(4-4+4)+4=8
((4-4)+4)+4=8
4-(4-4)+4=8
(4-(4-4))+4=8
4-(4-(4+4))=8
4-(4-4-4)=8
4-((4-4)-4)=8
4*(4+4)/4=8
(4*(4+4))/4=8
4*((4+4)/4)=8
4*4-(4+4)=8
(4*4)-(4+4)=8
4*4-4-4=8
(4*4)-4-4=8
(4*4-4)-4=8
((4*4)-4)-4=8
4*4/4+4=8
(4*4)/4+4=8
4*(4/4)+4=8
(4*4/4)+4=8
(4*(4/4))+4=8
((4*4)/4)+4=8
4/4*4+4=8
(4/4)*4+4=8
4/4*(4+4)=8
(4/4)*(4+4)=8
(4/4*4)+4=8
((4/4)*4)+4=8
4/(4/4)+4=8
(4/(4/4))+4=8
4/(4/(4+4))=8

9 结果为9的有:
4+4+4/4=9
(4+4)+4/4=9
4+4+(4/4)=9
(4+4)+(4/4)=9
4+(4+4/4)=9
4+(4+(4/4))=9
4+4/4+4=9
4+(4/4)+4=9
(4+4/4)+4=9
4+(4/4+4)=9
(4+(4/4))+4=9
4+((4/4)+4)=9
4/4+4+4=9
(4/4)+4+4=9
4/4+(4+4)=9
(4/4)+(4+4)=9
(4/4+4)+4=9
((4/4)+4)+4=9

Answer 2

1. 结果为1的有:
4+4/4-4=1
4-4+4/4=1
4*4/4/4=1
4/4+4-4=1
4/4-4+4=1
4/4*4/4=1
4/4/4*4=1

2. 结果为2的有:
4/4+4/4=2

3.结果为3的有:
无

4. 结果为4的有:
无

5. 结果为5的有:
无

6. 结果为6的有:
无

7. 结果为7的有:
4+4-4/4=7
4-4/4+4=7

8. 结果为8的有:
4+4+4-4=8
4+4-4+4=8
4+4*4/4=8
4+4/4*4=8
4-4+4+4=8
4*4-4-4=8
4*4/4+4=8
4/4*4+4=8

9. 结果为9的有:
4+4+4/4=9
4+4/4+4=9
4/4+4+4=9

Answer 3

这个不难，用到加减乘除及括号（用于调整计算顺序）：
相中请采纳，谢谢
4+4-4-4=0
4/4X4/4=1
4/4+4/4=2
(4+4+4)/4=3
(4-4)/4+4=4
(4x4+4)/4=5
(4+4)/4+4=6
4+4-4/4=7
4x4-4-4=8
4/4+4+4=9

Answer 4

4÷4+4+4=9
4+4+4-4=8
（4+4）-（4÷4）=7
4+（4+4）÷4=6
(4+4×4)÷4=5

4+(4-4)×4=4

(4+4+4)÷4=3

4-(4+4)÷4=2

(4+4-4)÷4=1

望采纳！！！

Answer 5

4个4填运算符等7到怎么做