Question

Subtrating by adding up

Answer 1

We need to subtract by adding up:
`63-28=?` we get 35

Explanation:

We need to subtract by adding up:
`63-28=?`

We will make a number line from 28 till 63 and then jump intervals to reach 63.

We will add those intervals to get the result. That result will be the subtraction of
`63-28=?`

`28+2=30\\30+10=40\\40+10=50\\50+10+3=63`

So, we will add up: 2+10+10+10+3 = 35

So,
`63-28=35`