Purpose:
The purpose of this activity is to help your child learn factors of numbers 100. Factors are numbers that divide evenly into a number with no remainder, for example, the factors of 6 are 1, 2, 3, and 6.
Link to Number Framework:
Number Facts, Stage 7-8.
What you need:
- A calculator
What to do:
- Enter a 2 digit number into the calculator.
- Ask your child to name as many factors of this number as they can. Factors come in pairs that multiply together to give the number. Every number has at least 1 and itself as factors.
- If your child is unsure whether a number is a factor, use the calculator to check. For example, if they are unsure whether 6 is a factor of 48, calculate 48 divided by 6. This will tell you the number that multiplies with 6 to give 48. In this example 48 ÷ 6 = 8 so both 6 and 8 are factors of 48. If the answer to the division is not a whole number, ie, it has a decimal point, then the number is not a factor. For example 48 ÷ 5 = 9.6 so 5 is not a factor of 48.
- Take turns with your child to name factors for numbers and use the calculator.
What to expect your child to do:
- Use the basic multiplication facts they know to help them identify factors. For example, if you know 4 x 8 is 32, you can use this to identify that 4 and 8 are factors of 32.
Related Māori vocab:
| two digit number | tau mati-rua |
| calculator | tātaitai |
| factor | tauwehe |
| divide | whakawehe (-a) |