# Doubles and Halves Memory

### Purpose:

The purpose of this activity is to help your child to learn doubles of numbers and their corresponding halves. For example 10 + 10 = 20, and 1/2 of 20 is 10, 8 + 8 = 16 and 1/2 of 16 is 8.

Number Facts, Stage 4

### What you need:

• Game cards (PDF, 27KB). You can print these or make your own.

### What to do:

Use the doubles and halves cards to play memory. The aim of the game is to find as many matching pairs as possible by remembering where the cards are.

• Spread out all the cards face down.
• Turn over 2 cards. If the cards match, for example "1/2 of 4" and "2" players get to keep the pair. If the cards don’t match, players replace them face down.
• Take turns to try and find a matching pair.
• The winner is the player with the most pairs at the end of the game.

Have many pairs can you get?

### What to expect your child to do:

Be able to instantly recall doubles and their corresponding halves.

### Related Māori vocab:

 half haurua double rearua matching pairs takirua taurite