simplify 1+2+3+4+5 — step-by-step solution

Let's simplify:

1

+ 2

+ 3

+ 4

+ 5

ⓘ Start from

1

and move forward

2

on the number line:

1 + 2

3

3

+ 3

+ 4

+ 5

ⓘ Start from

3

and move forward

3

on the number line:

3 + 3

6

6 + 4 + 5

ⓘ Start from

6

and move forward

4

on the number line:

6 + 4

10

10 + 5

ⓘ Start from

10

and move forward

5

on the number line:

10 + 5

15

▶Simplified form:

15