The month of may can be represented by the integer 5. represent the integers 1 through 20 using six 5s

and the mathematical operations such as addition, subtraction, multiplication and division for the use of parentheses. Example for 0 = (5-5)(5+5/5-5)
If there is a possible formula that would be nice to have too Pleas and Thank You

1: 5/5 × 5/5 × 5/5
2: (5/5 × 5/5) + 5/5
3: 5/5 + 5/5 + 5/5
4: (5+5)/5 + (5+5)/5
5: 5×5 - 5 - 5 - 5 - 5
6: 5 - 5/5 + (5+5)/5
7: 5×5/5 + (5+5)/5
8: 5 + 5 - 5/5 - 5/5
9: 5×5/5 + 5 - 5/5
10: 5×5/5 + 5×5/5
11: 5×5/5 + 5 + 5/5
12: 5 + 5 + 5/5 + 5/5
13: 5 + 5 + 5 - (5+5)/5
14: 5×5 - 5 - 5 - 5/5
15: 5×5 - 5 - 5×5/5
16: 5×5 - 5 - 5 + 5/5
17: 5 + 5 + 5 + (5+5)/5
18: 5×5 - 5 - (5+5)/5
19: 5 + 5 + 5 + 5 - 5/5
20: 5 + 5 + 5 + 5×5/5

Unfortunately, there is no formula for this kind of exercise. (Another version I've worked on uses four 4s; easier, in a number of ways, because of its integral square root; its moderate-sized factorial; its being an even number; etc.

Report Abuse

1 = (5 + 5 + 5) / (5 + 5 + 5)
2 = 5/5 + (5 + 5) / (5 + 5)
3 = 5/5 + 5/5 + 5/5
4 = (5 + 5)/5 + (5 + 5)/5
5 = (5 + 5 + 5 + 5 + 5)/5
...
20 = 5 + 5 + 5 + 5 + 5/5