Let's count in 10s. You can count in 10s using a number line. This number line starts at 0 and ends at 90. The numbers go up in units of 10. Let's use this number line to count in 10s to work out ...

Counting to 10 is a useful ... stop counting at any number too. There are 4 pieces of fruit altogether. Counting is easier when the things we are counting are in a line.