# math

let s= the sum of all even numbers from 2 to 10 {including 2 and 10}
Let t= the sum of all odd numbers from 1 to 9 z{including 1 and 9.. find s-t

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1. LOL

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

10 - 9 = 1

get it ?

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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!

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3. THANX THAT ANSWER WAS WELL EXPLAINED AN EVERYTHING

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4. LOL, yes 5*1 = 5 !!!

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