# Tens, Hundreds, Thousands

### Purpose:

The purpose of this activity is to help your child to learn the multiplication basic facts with tens, hundreds and thousands, for example 10 x 100 = 1000, 100 x 100 = 10 000.

Number Facts, Stage 6.

• A calculator

### What to do:

Type a basic fact into the calculator, for example “10 x 100”. Before you press “=” ask your child to predict what the answer will be. Take turns with your child to enter the basic facts into the calculator and predict the results.

For each fact that you solve, discuss whether the answer from the calculator is reasonable. For example, 10 x 100 = 1000 can be reasoned as “5 x 100 = 500, and 500 is half of 1000, so 1000 must be the right answer.” This encourages your child to check the answers they receive from the calculator, rather than accept them as correct without consideration.

Keep a list of the problems you solve. Can you see a pattern in the answers? Look at the number of zeros in each problem and solution.

### Related Māori vocab:

 calculator tātaitai multiply whakarea (whakarau) multiply 10 by 100 whakareatia te 10 ki te 100