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There are twelve numbers 1,2,3, ····················································································· At least four
1+12=13
2+11=13
.
.
6+7=13
There are six groups. It's very easy to find out four. Just add and subtract
Insert proper operation symbol between the five numbers, so that the result is equal to 5
1-2-3+4+5=5
1*2*3+4-5=5
|1%2-3|*4-5=5
(1+2-3)*4-5=5
RELATED INFORMATIONS
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