9 plus 11 (20) plus 15 (35) plus 18 is equal to 53
It is: (15+18)+12 = 45
Yes.
-12 + 18 - (-15) = -12 + 18 +15 = 21
39-15+18 6x3 Answer: 25
9 plus 11 (20) plus 15 (35) plus 18 is equal to 53
18 + 10 + 20 + 30 + 15 + 50= 143
-3
65
It is: (15+18)+12 = 45
160
57 - (24 plus 15) = 18
Yes.
-12 + 18 - (-15) = -12 + 18 +15 = 21
-15.
22-15=7 and 18+7=25 so 25
3 + 3 = 6 6 x 3 = 18 18 - 3 = 15 15 + 3 = 18