Putting Numbers in Order

From Greatest to Least

From Least to Greatest

Greatest? Least?

First we need to know the words.

Greatest means biggest.

Least means smallest.

Look at Place Values

Look at Tens and Ones

One digit numbers are smaller. 0-9

Two digit numbers are

bigger.

10 - 99

One Digit Numbers

The numbers 0 - 9 are smaller.

We only see them in the ones place.

Tens ones0123456789

Two Digit Numbers

The numbers 10 - 99 are bigger.

We see them in the ones and tens places.

Tens Ones 1 2 3456789

1 2 3 4 5 6 7 8 9 0

Choose The Greatest

Tens ones

5Tens ones

3 5or

Tens ones

7 9Tens ones

9or

Choose the Least

Tens ones

7 3Tens ones

4or

Tens ones

9Tens ones

2 6or

Ordering 2-Digit NumbersFirst:Compare the tens place.The number with the biggerdigit is the greatest number.

Next:If the tens place is the same, compare the ones place.The bigger digit in the ones place is the greatest number.

Tens ones

76

33

Tens ones

77

39

Let’s Practice

Put these numbers in order from least to greatest. (smallest to biggest)

39 76 55 15

They can be put in order by looking at the tens place only.

15 39 55 76

Let’s Try a Harder One

42 38 35 11

1. Look at the tens place. I know 11 is least because it has a ‘1’ in the tens place. I know 42 is greatest because it has a ‘4’ in the tens place.

11 35 38 42

2. Look at the ones place for 38 and 35. A ‘5’ is smaller than an ‘8’, so 35 comesbefore 38.

Order these numbers from least to greatest.

More Practice…

33 71 26 92

Put these numbers in order from least to greatest.Look at tens, then look at ones.

27 48 94 43

68 62 65 69

More Practice…Put these numbers in order from greatest to least.Look at tens, then look at ones.

33 71 26 92

27 48 94 43

68 62 65 69

Let’s Review Ordering Numbers

1. Know the words.

Greatest means biggest.

Least means smallest.

2. Compare tens, then ones.