0
Wiki User
23
Lurline Lemke ∙
10, 5, 3, 1
41
28
-1
5 and -4
4 & 19... 4 x 19 = 76. 4 + 19 - 23.
79
19
The positive numbers that add up to 21 are 1, 2, 3, 4, 5, 6.
47
OK. I've found it. You can too. Just add up all four numbers, and divide their sum by 4 .
19+4