20
does how many mean add or subtract
5 + 8 + 2 = 15. 15 / 3 = 5 All you have to do is add the numbers, then divide the answer by how many numbers you added.
-5 and +3
259
By the signs: 2+2(Add) 2-2(Subtract) +=add -=subtract
you add the numbers together than divide that by 2, after that you add how many numbers there are then subtract 2
1. Subtract 25 2. Then subtract 6 3. Then subtract 12 4. Then subtract 2 5. Then subtract 10 6. Then subtract 15 7. Then subtract 7 8. Then add 3 X 1/2 9. Then add 8
20
The pair of numbers are 15 and 2, or -2 and -15 15 - 2 = 13 15 x 2 = 30 -2 - (-15) = -2 + 15 = 13 (-2)(-15) = 30
I donβt know
26
3
20
50+50+(11-1-10)*(2+5+15+35)
22 and 18
you subtract the top 2 numbers and then leave the denominators the same like: 7/8-4/8=3/8. Get it?