Which 10s number and 1s number is 48 made from?
Being able to partition numbers such as this in different ways.
40 and 8 or 30 and 18 ultimately underpins quick mental calculation.
Match the correct tens number to the 2-digit number on our bank board, before placing the correct 1s number over the zero.
This helps children to understand that the written form of zero is only used as a placeholder.