### Purpose:

You can help your child learn multiples of 100 that add to 1000. For example, 600+400=1000, and 200+800=1000.

### What you need:

A calculator

### What to do:

Use a calculator to challenge each other to make number pairs that add to one thousand.

Enter a three-digit number that is a multiple of 100 into the calculator. For example, 400.

Challenge the other player to make the number into one thousand using just one other number. In the above example the child needs to enter “+ 600=” to make one thousand.

Take turns entering numbers and completing the challenge using many different three-digit numbers.

### What to expect your child to do:

Use the facts to ten that they know to help them work out facts to 1000. For example, if you know 2 + 8 = 10, you can use this to work out 200 + 800 = 1000.

### He Kupu Māori:

three digit number | tau mati-toru |

calculator | tātaitai |

add (addition) | tāpiri (tāpiritanga) |

### Download a file of this activity:

PDF (235KB)