# Find the sum of the following number sequence: 1+2+3+4+5+6+7+8+9+10?

Mar 7, 2018

55

#### Explanation:

Add the first and the last numbers of the sequence and repeat for the other sets of numbers.

$1 + 10 = 11$
$2 + 9 = 11$
$3 + 8 = 11$
$4 + 7 = 11$
$5 + 6 = 11$

This gives 5 sets of numbers that equal 11.

$5 \times 11 = 55$