Conjecturing and generalising

Create a pattern on the small grid. How could you extend your pattern on the larger grid?

Shapes are added to other shapes. Can you see what is happening? What is the rule?

This investigates one particular property of number by looking closely at an example of adding two odd numbers together.

This activity focuses on rounding to the nearest 10.

In this calculation, the box represents a missing digit. What could the digit be? What would the solution be in each case?

This challenge is about finding the difference between numbers which have the same tens digit.

This activity focuses on doubling multiples of five.

Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?

Here is a selection of different shapes. Can you work out which ones are triangles, and why?

Pat counts her sweets in different groups and both times she has some left over. How many sweets could she have had?