**Identify and order numbers to 1,000.**

Year 3 Ordering Numbers Investigation

**Investigation:**

**How many possibilities?**

Look at the three digit cards below:

How many different three-digit numbers can you make if you rearrange them each time?

Estimate how many you think you will make before investigating this.

Now look at these digit cards:

Do you think you will be able to make more three-digit numbers this time? Could there be the same amount or less?

Explain why you think this before investigating again.

**Answers:**

The digit cards 4, 2 and 9 give more possibilities than 5, 3 and 5 due to the repetition in the second set of cards.

The numbers that can be made from the first set are:

249, 294, 429, 492, 924, 942.

The numbers from the second set of cards are:

355, 535, 553.