Skill: Write an equation for a subtraction story

A subtraction story tells about a whole amount, an amount that is removed, and what is left.

Look for these numbers and ask:

• What was the starting amount? This is the whole.
• What was taken away? This is the amount removed.
• What are you trying to find? This is the remaining amount.

Example:

Maya has 24 stickers. She gives 7 stickers to her friend. How many stickers does Maya have left?

1. The whole amount is $(24)$ stickers.
2. The amount removed is $7$ stickers.
3. The amount left is unknown, so we use a box for it.

Write the equation:

$$24-7=\boxed{\phantom{0}}$$

Now subtract:

$$24-7=17$$

So, Maya has 17 stickers left. The equation is:

$$24-7=17$$