Subtracting One-Digit Numbers from Two-Digit Without Regrouping
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How to Subtract One-Digit from Two-Digit Numbers Without Regrouping

      Subtraction is taking away one number from another.

Key Point:

Imagine you have 18 cupcakes and you eat 6.

Cupcakes 18 minus 6

How many do you have left? 

You need to subtract!

18 - 6 = ?

In the past, you drew pictures or counted down. That’s harder to do with two-digit numbers.

Let's learn to subtract using our old friend column form! 😂

1️⃣ Start by writing the numbers on top of each other, in columns.

18 - 6

Line up the Ones digits on the right (👉)! ✅

2️⃣ Next, subtract the Ones column first.

18 - 6

This means we subtract:

8 - 6 = ____

Do you know the answer? 🤔

Go back to the previous lesson on subtracting one-digit numbers if you don't know it from heart. ⚡️

Tip: You can count down, or ask yourself, "6 plus what number equals 8?"

8 - 6 = 2

Good job! 🤗 This 2 goes in the Ones column below the answer line.

18 - 6

3️⃣ Next, we subtract the Tens column. 

18 - 6 = 12

There’s nothing in the second number, so we just bring down the top number.

You have 12 cupcakes left! ✅

Great job. You just used column form to subtract from a two-digit number! 👩‍🚀

Another Example

26 - 3 = __

1️⃣ First, let’s write the problem in column form. Did you guess that? 😂

26 - 3

2️⃣ Now, let’s subtract the Ones column.

26 - 3

3️⃣ Great! Now, we can bring down the 2 in the Tens column.

26 - 3 = 23

You’ve got it! 🤗 

Tip: It's a lot like using column form for addition. You subtract one column at a time, starting with the Ones column. 👍

Now, practice what you just learned. 😺 You'll remember for long.

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