What are decimals?
A decimal is a way of writing a number that is not whole.
Decimal numbers are 'in between' numbers. For example, 10.4 is in between the numbers 10 and 11. It is more than 10, but less than 11.
Take care when reading the values of decimal numbers.
4.2 means 4 and 2 tenths.
4.20 means 4 and 2 tenths and 0 one-hundredths. The last zero does not need to be there.
4.02 means 4 and 0 tenths and 2 one-hundredths.