What Does Subtracting 1 Mean?
Subtracting 1 is like taking away one thing from a group.
When we subtract 1 from a number, we get the number that comes right before it when we count. It's like stepping backward on the number line!
How to Subtract 1
1️⃣ Start with your number (like 5)
2️⃣ Imagine taking away 1 thing
3️⃣ Find the number that's one less (4!)
Let's Practice Together!
Example 1: Balloon Pop!
You have 5 balloons. POP! One flies away. How many are left?
5 - 1 = 4 balloons left!
Great job! 4 comes right before 5 when we count.
Example 2: Cookie Monster!
There are 8 cookies on the plate. You eat 1 cookie. How many cookies remain?
8 - 1 = 7 cookies left!
Yummy! 7 is one less than 8.
Parent Tips 🌟
- Use real objects: Have your child physically remove one item (like a toy or block) from a group to see subtraction in action.
- Count backward: Practice counting down from small numbers (5, 4, 3...) to help understand subtracting one.
- Make it fun: Use toys, snacks, or drawings to create simple "take away one" stories throughout the day.