Lee was writing all the counting numbers from 1 to 20. She stopped for a rest after writing seventeen digits. What was the last number she wrote?
Leah and Tom each have a number line. Can you work out where their counters will land?
Use the 'double-3 down' dominoes to make a square so that each side has eight dots.
How will you work out which numbers have been used to create this multiplication square?
What can you say about these shapes? This problem challenges you to create shapes with different areas and perimeters.
Does this 'trick' for calculating multiples of 11 always work? Why or why not?
If everyone in your class picked a number from 1 to 225, do you think any two people would pick the same number?
What is the smallest number of answers you need to reveal in order to work out the missing headers?
