Numbers in order
You learn to put numbers up to 100 in order from smallest to largest.
How to work it out
- Look at the tens first: fewer tens means a smaller number.
- If the tens are the same, look at the ones.
- Put the smallest number first.
Put in order from smallest to largest: 43, 34, 9, 40.
- Look at the tens first.
- 9 has no tens, so 9 comes first.
- 34 has 3 tens, 43 and 40 have 4.
- For 40 and 43 the ones decide: 40 comes before 43.
- So 9, 34, 40, 43.
More examples
Put in order from smallest to largest: 71, 17, 70.
- 17 has 1 ten: that one goes first.
- Then 70, then 71.
Put in order from smallest to largest: 25, 52, 22.
22, 25, 52.