Subtract zero/all
key notes :
Subtracting Zero (0)
Rule: Subtracting 0 from a number does not change the number.
- Example: 7 − 0 = 7 ✨
Explanation: Zero means nothing, so the number stays the same.
Tip: Always remember: “Subtracting zero keeps it the same.” ✅
Subtracting All (the number itself)
Rule: Subtracting a number from itself gives zero.
- Example: 9 − 9 = 0 ⚡
Explanation: If you take away everything, nothing is left.
Tip: Always remember: “Take all → nothing remains.” 🟢
Quick Trick Table
| Example | Answer | Rule |
|---|---|---|
| 5 − 0 | 5 | Subtracting zero, number stays same |
| 8 − 8 | 0 | Subtract all, nothing remains |
| 12 − 0 | 12 | Subtracting zero, number stays same |
| 6 − 6 | 0 | Subtract all, nothing remains |
Fun Tip for Kids:
- Zero is like a ghost 👻, it doesn’t take anything away.
- Subtract all is like eating all the candies 🍬, nothing is left!
Learn with an example
Subtract:
7 − 0 =
When you subtract zero from a number, the number stays the same.
Now subtract:
7 − 0 = 7
Subtract:
3 − 0 =
When you subtract zero from a number, the number stays the same.
Now subtract:
3 − 0 = 3
Subtract:
3 − 3 =
When you subtract a number from itself, the answer is zero.
Now subtract:
3 − 3 = 0
Let’s practice!🖊️
