let s= the sum of all even numbers from 2 to 10 {including 2 and 10}

Question

Let t= the sum of all odd numbers from 1 to 9 z{including 1 and 9.. find s-t

Answer 1

LOL

2 - 1 = 1
4 - 3 = 1
...............
...............

10 - 9 = 1

get it ?

Answer 2

s = 2 + 4 + 6 + 8 + 10

s = 30

t = 1 + 3 + 5 + 7 + 9

t = 25

Then:

s - t = 30 - 25

s - t = 5

Done!

Answer 3

THANX THAT ANSWER WAS WELL EXPLAINED AN EVERYTHING

Answer 4

LOL, yes 5*1 = 5 !!!