Ordering Integers

In a Nutshell

To compare two integers, start from the left. The first digit that differs tells you which number is larger.

On a number line, numbers get bigger as you move to the right. We use the symbols << (less than) and >> (greater than) to compare two numbers.

When comparing integers with different numbers of digits, the one with more digits is always larger. When they have the same number of digits, compare column by column from the left until a digit differs.

Try it on the number line below. Enter two numbers, press Compare, and see which is further to the right.

Number line from 0 to 20 An interactive number line. Two markers can be placed to compare numbers. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B

Watch it work

Question: Put these numbers in order from smallest to largest: 4,3724{,}372, 4,3274{,}327, 43,72043{,}720.

Have a go

Q1. Insert << or >>: 5,681    5,6185{,}681 \;\square\; 5{,}618.

Q2. Order from smallest to largest: 982982, 9,8209{,}820, 928928.

Q3. Write a number that is between 3,4503{,}450 and 3,4603{,}460.

Q4. True or false: 10,000>9,99910{,}000 > 9{,}999?