Being curious

Use the interactivities to fill in these Carroll diagrams. How do you know where to place the numbers?

Can you place these quantities in order from smallest to largest?

This activity is based on data in the book 'If the World Were a Village'. How will you represent your chosen data for maximum effect?

A group of children are discussing the height of a tall tree. How would you go about finding out its height?

What happens when you add three numbers together? Will your answer be odd or even? How do you know?

Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick ten numbers from the bags so that their total is 37?

A hundred square has been printed on both sides of a piece of paper. What is on the back of 100? 58? 23? 19?

This problem challenges you to find out how many odd numbers there are between pairs of numbers. Can you find a pair of numbers that has four odds between them?

What is the greatest number of squares you can make by overlapping three squares?