How do you get to 21 by using 1 5 6 and 7?

Answer 1

To get to 21 using 1, 5, 6, and 7, you can calculate (6 + 5) x (1 + 7) = 11 x 8 = 88. This equation follows the order of operations (parentheses first, then multiplication) to achieve the desired result of 88.

Answer 2

Well, honey, you take 5 and add it to 6 to get 11, then multiply that by 1 to get 11. Finally, add 7 to that and voila, you've got 21! Math can be fun, huh?

Answer 3

6 / ( 1 - 5/7 )