Use the information to describe these marbles. What colours must be on marbles that sparkle when rolling but are dark inside?
This investigates one particular property of number by looking closely at an example of adding two odd numbers together.
This problem looks at how one example of your choice can show something about the general structure of multiplication.
This ladybird is taking a walk round a triangle. She starts off near the middle of one side of the triangle. Can you see how much she has turned when she gets back to where she started?
Would it be the same amount of turn if she went around another triangle?
Why?