用7,7,3,负3算二十四点

问题描述:

用7,7,3,负3算二十四点

这个很多方式,但原理就一条24/7*7=24,而24/7=3+3/7,所以,只要将3和-3变换顺序加括号就有很多出来了:
7*((3/7)-(-3))=24
7*(3-(-3)/7)=24
(3-(-3)/7)*7=24
(3-((-3)/7))*7=24
(3-(-3)/7)*7=24
(3-((-3)/7))*7=24
(3/7-(-3))*7=24
((3/7)-(-3))*7=24
7*(3/7-(-3))=24
7*(3-(-3)/7)=24
7*(3-((-3)/7))=24
7*(3/7-(-3))=24
7*((3/7)-(-3))=24
(3/7-(-3))*7=24
((3/7)-(-3))*7=24

7×【(3÷7)-(-3)】=24
~~~~(>_

山--山*0-0·············~~~···~~~~~~~~~~~~~~~~~~

(3 -(-3) ÷ 7) × 7

7*(3-(-3)/7)=24
7*(3-((-3)/7))=24
7*(3/7-(-3))=24
7*((3/7)-(-3))=24
(3/7-(-3))*7=24
((3/7)-(-3))*7=24
(3-(-3)/7)*7=24
(3-((-3)/7))*7=24
(3-(-3)/7)*7=24
(3-((-3)/7))*7=24
(3/7-(-3))*7=24
((3/7)-(-3))*7=24
7*(3/7-(-3))=24
7*((3/7)-(-3))=24
7*(3-(-3)/7)=24
7*(3-((-3)/7))=24