50*51/2 = 1275
i would say count up
It is 50.
There are many pairs of numbers that add up to 50. For example, 25 and 25, or 30 and 20. Another possible pair is 10 and 40. You can choose any two numbers that, when summed, equal 50.
rearrange 1 to 50 so that you see this pattern: 50 = 50 1+49 = 50 2+48 = 50 ... 24+26 = 50 25 = 25 then add this up: 25 x 50 + 25 = 1275
100 and 100 can add to 200 50, 50, 50, and 50 can add to 200 8 25s can add to 200 20 10s can add to 200
An odd number of odd numbers can not add up to an even number. There fore any 9 (odd) odd numbers can not add up to 50 (even).
50*51/2 = 1275
i would say count up
They both add up to 110
They add up to 50
You can add up to 50 pounds with the vest, after the 50 pounds the vest can get hard to weigh.
2+7+41=50
50
53
262
(1 + 100) * 50