What Are Multiples of 10?
Multiples of 10 are numbers like 10, 20, 30, 40, and so on!
When we subtract multiples of 10, we're taking away whole groups of ten. It's like having a pile of
10-cent coins and removing some of them!
How to Subtract Multiples of 10
1️⃣ Look at the tens place (the first digit from the right)
2️⃣ Subtract the tens like regular numbers
3️⃣ Keep the ones place the same (if there is one)
Let's Practice Together!
Example 1: 50 - 20 = ?
50
-
20
=
?
Think: 5 tens - 2 tens = 3 tens, so 50 - 20 = 30!
Example 2: 85 - 30 = ?
85
-
30
=
?
Think: 8 tens - 3 tens = 5 tens, plus the 5 ones stays the same, so 85 - 30 = 55!
Parent Tips 🌟
- Use physical objects like bundles of 10 straws or dimes to show what "multiples of 10" look like when subtracting.
- Make it a game - give your child 100 points and have them "spend" multiples of 10 on pretend toys.
- Connect to real life - show how subtracting multiples of 10 works when counting money (dimes) or measuring (centimeters).