Write down 5 numbers between 0-20 e.g. 8,3,12,20.
Ask your child which of the numbers is largest? Are any of the numbers larger than 10?
Which number is smallest? Put the numbers in order, starting with the smallest.
How can you check the order?
Write a number line together checking the number formation and use this to count along and check their answers.
If your child is confident with numbers to 20, increase the value of your selected numbers to 0-50 then 0-100.