用四個「４」及「＋」、「–」、「÷」或括號，完成以下的算式。

1.
4 - (4+4)÷4 or 4÷4+4÷4

2.
4÷4+4÷4

3.
4+(4+4)÷4

4.
4+4 - (4 - 4)

5.
Can't find the answer

6.
(4+4+4)÷4

7.
Can't find the answer

8.
4+4-(4÷4)

9.
4+4+(4÷4)

1. (4÷4) + (4÷4) = 2
2. 4 + (4-4-4) = 4
3. 4 + ((4+4)÷4) = 6
4. 4+4+(4-4) = 8
5. (44-4)÷4 = 10
6. (4+4+4)÷4 = 3
7. N/A
8. 4+4-(4÷4) = 7
9. 4+4+(4÷4) = 9

2007-05-17 20:37:07 補充：
Answer of 7:{4(4) 4)}÷4 = 5

2007-05-17 20:39:11 補充：
It should be [4(4) 4]÷4 = 5 (Answer of No.7)

2007-05-17 20:39:49 補充：
It should be [4(4) 4]÷4 = 5 (Answer of No.7)

2007-05-17 20:42:06 補充：
It should be [4(4) (plus) 4]÷4 = 5 (Answer of No.7)I don't know why cannot be stated, so plus used instead of

用四個「４」及「＋」、「–」、「÷」或括號，完成以下的算式。
(4/4)+(4/4)=2
(4+4-4)+4=4
(4+4)/4+4=6
4+4+4-4=8
4(4+(4/4)=10
(4+4+4)/4=3
4+4/(4/4)=5
(4-4/4)+4=7
(4+4/4)+4=9

1. 4÷〔(4+4)÷4)〕 =2
2.〔(4–4)÷4〕+4 =4
3.〔(4+ 4) ÷4〕+ 4 =6
4. 4 + 4 + 4 –4 =8
5. 計唔到 =10
6. ( 4 + 4 + 4 ) ÷ 4 =3
7. 計唔到 =5
8. ( 4 + 4 )–4 ÷ 4 =7
9. 4 + 4 + 4 ÷ 4 =9