數學的腦筋急轉彎4口4口4口4的奧妙
就是 有4個4
'4口4口4口4" 這圖的"口"是代表符號(+ - * /) "*=乘 " "/=除"
把+-*/加到口裡面 答案要是1~18(1到18都要有)
所以會有18組的答案
ps:"4口4口4口4"(數字只能有4個4)
而且可以加上"括號()"
例如說 : "(4/4)+(4-4)"答案就是"1"
共有18組答案
請各位大大幫幫忙 ><"
5 則回答
最佳解答
(4+4)÷(4+4)=1
(4÷4)+(4÷4)=2
(4+4+4)÷4=3
4×(4-4)+4=4
(4×4+4)÷4=5
(4+4)÷4+4=6
(4+4)-(4÷4)=7
(4+4)×4÷4=8
4+(4÷4)+4=9
(44-4)÷4=10
4444=11
4×(4-(4÷4))=12
4444=13
4444=14
(4×4)-(4÷4)=15
(4×4×4)÷4=16
(4×4)+(4÷4)=17
4444=18
11.13.14.18求不出來!!
只用+ - * /是做不出來的
ex：
10＝(44－4)/4
如果可用其他符號
請參考
http://tw.knowledge.yahoo.com/question/question?qid=1206111511929
有公式
(4 / 4) (4 - 4) = 1
(4 / 4) (4 / 4) = 2
(4 4 4) / 4 = 3
(4 - 4) * 4 4 = 4
(4 * 4 4) / 4 = 5
(4 4) / 4 4 = 6
(4 4) - (4 / 4) = 7
((4 4) * 4) / 4 = 8
(4 4) (4 / 4) = 9
4 4 4 4 = 10
4 4 4 4 = 11
(4 - (4 / 4)) * 4 = 12
4 4 4 4 = 13
4 4 4 4 = 14
(4 * 4) - (4 / 4) = 15
(4 * 4) - (4 - 4) = 16
(4 * 4) (4 / 4) = 17
4 4 4 4 = 18
剩幾題解不出來 = =
(4/4) +(4-4)=1
(4/4) +(4/4)=2
(4*4-4)/4=3
4*(4-4) 4=4
5
(4 +4)/4 +4=6
(4+ 4)-(4/4)=7
(4*4)-4-4=8
(4/4) +4 +4=9
10
11
12
13
14
(4*4)-(4/4)=15
(4*4)-(4-4)=16
(4*4)+ (4/4)=17
18
我只想到一些
希望能幫上你^^
(4 / 4) (4 - 4) = 1
(4 / 4) (4 / 4) = 2
(4 4 4) / 4 = 3
(4 - 4) * 4 4 = 4
(4 * 4 4) / 4 = 5
(4 4) / 4 4 = 6
(4 4) - (4 / 4) = 7
((4 4) * 4) / 4 = 8
(4 4) (4 / 4) = 9
我只能解出這些