4个4用加减乘除和括号怎样才能等于5拜托了各位 谢谢
5\u4e2a4\uff0c\u52a0\u51cf\u4e58\u9664\u62ec\u53f7\u600e\u4e48\u6837\u7b97\u7b49\u4e8e1\u523020\uff1f7
\u548c
19
\u7528\u4e86\u4e00\u6b21\u6839\u53f7\uff0c\u5176\u4f59\u7684\u90fd\u53ea\u7528\u4e86
+\uff0c-\uff0c\u00d7\uff0c\u00f7\uff0c()
1
=
(4-4)\u00d74+4\u00f74
2
=
(4+4)\u00f74+4-4
3
=
4-4+4-4\u00f74
4
=
4-4+4-4+4
5
=
4-4+4+4\u00f74
6
=
4+4\u00f74+4\u00f74
7
=
4\u00f74+4+4-\u221a4
\uff1f\uff1f\uff1f
8
=
4+4+(4-4)\u00d74
9
=
(4+4\u00d74)\u00f74+4
10
=
(4+4)\u00f74+4+4
11
=
4+4+4-4\u00f74
12
=
4+4+4+4-4
13
=
4\u00d74-4+4\u00f74
14
=
4\u00d74-(4+4)\u00f74
15
=
(4\u00d74\u00d74-4)\u00f74
16
=
(4+4\u00f74)\u00d74-4
17
=
(4\u00d74\u00d74+4)\u00f74
18
=
4\u00d74+(4+4)\u00f74
19
=
4\u00d74+\u221a4+4\u00f74
\uff1f\uff1f\uff1f
20
=
4+4+4+4+4
\u6709\u4e9b\u6570\u4e0d\u6b62\u4e00\u79cd\u7b97\u6cd5\uff0c\u6bd4\u5982\uff1a4,
20
\u7b49\uff0c\u8fd9\u91cc\u4e0d\u518d\u5217\u4e3e\u4e86
\uff086\u00d76\uff0d6\uff09\u00f76=5
(4*4+4)除4=5(4*4+4)/4=5
绛旓細(4*4+4)闄4=5
绛旓細4+4+4/4=9
绛旓細(4*4)/(4*4)=1 4-(4+4)/4=2 (4*4-4)/4=3 绗洓涓笉浼氫綘鍦ㄦ兂鎯冲惂! (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=0
绛旓細4+4+4梅4=9
绛旓細4-4+4梅4=1 4-锛4+4锛壝4=2 锛4+4+4锛壝4=3 锛4-4锛壝4+4=4 锛4脳4+4锛壝4=5 锛4+4锛壝4+4=6 4-4梅4+4=7 锛4+4锛壝4脳4=8 4梅4+4+4=9 鍏跺疄姣忎釜閮芥湁澶氱鏂规硶锛屽彇鍏朵竴灏辫
绛旓細(4*4+4)/4=5
绛旓細4²-锛4²+4锛壝4=11 4+4+鈭4+鈭4=12 4²-锛4+鈭4锛壝封垰4=13 4+4+4+鈭4=14 4x4-4梅4=15 4x4+4-4=16 4x4+4梅4=17 4x4+4梅鈭4=18 4²+锛4+鈭4锛壝封垰4=19
绛旓細(4-4)x4鍗4浜4
绛旓細4*(4-4)+4=4
绛旓細(4*4+4)/4=5 4+(4+4)/4=6 4+4-4/4=7