Balance Subtraction Equations with Regrouping

Do you remember how to balance equations? 🤔

When we **balance** an equation, we make sure the value on each side of the equation is equal.

What happens when we're missing a part of the scale?

We start by **simplifying **whatever we can!

🤓 We can simplify the **left **side of the equation.

We **rewrite **the equation after we simplify.

Now, we have to figure out the missing number.

🤔 Are we missing the **part **or the **whole?**

👉 We're missing the **whole.**

To find the **whole**, we **add **the **two known parts **together.

1 + 4 =5

This means we can fill in our original equation with 5.

3 - 2=5- 4

Great job! 🎉

Okay, let’s try this with two-digit numbers.

Let’s try this one out:

32 - 18=____ - 16

Let’s start by subtracting:

Next, we add 16 to 14 to find the missing number!

We can fill in the blank now!

32 - 18=30- 16

30 - 16 is 14.

The left side is equal to 14. The right side is also equal to 14.

The two sides are now balanced. 😃

Let’s try another one!

____ - 17=44 - 38

Where do we start! We **simplify** everything we can!

**😃 Tip: **Remember to **rewrite **the equation after you simplify. This will make it easy for you to keep track of the steps.

So after simplifying:

Are we missing the **part **or the **whole?**

Yes! We're missing the whole.

So we add the two parts, 17 and 6, to find the missing number!

This means our balanced equation is:

23- 17=44 - 38

👉 If you check the two sides, they're both equal to 6.

You’ve got it! 🤗 Now, you can practice what you've learned!

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