Purpose:
To help your child to instantly recall their subtraction facts to 20.
What you need:
- A set of number cards 1 - 10. (PDF, 37KB)
- A set of number cards 11 - 20.(PDF, 36KB)
What to do:
Make the two sets of number cards. You can print these or make your own.
Make a pile for each set of cards. Face them down.
Ask your child to turn over the top card from the 11 – 20 pile. For example 14.
Turn over the top card from the 1-10 pile. For example 5.
Ask your child to subtract that number from the first number. 14 - 5 = 9
The aim is to work it out quickly - to practice instant recall.
If you child answers quickly and correctly give them the 1-10 card. If not put it back into the pile.
The activity finishes when your child has collected all of the 1-10 cards.
What to expect your child to do:
To instantly recall the addition facts up to 20.
Variations :
- Two players can play to see who can give the answer first.
- Use a timer. If a player does not give the correct answer quickly, the other player can answer.
- Choose the same number between 11-10 to focus on.
He Kupu Māori:
| subtract, take away | tango (-hia) |
| choose | kōwhiri (-a) |
Download a file of this activity:
PDF (197KB)