1 out of 3
In this calculation, the box represents a missing digit. What could the digit be?
2 out of 3
Arrange the numbers 1 to 6 so that the sum of each side of the triangle equals the number in its centre.
2 out of 3
Pat counts her sweets in different groups and both times she has some left over. How many sweets could she have had?
2 out of 3
Choose four numbers to put in the squares so that the differences between joined squares are odd.
2 out of 3
Are these domino games fair? Can you explain why or why not?
2 out of 3
Which numbers make these lights come on? Do any numbers light up all the lights?
2 out of 3
How many legs do each of these creatures have? How many pairs is that?
3 out of 3
If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?
1 out of 3
Are these statements relating to odd and even numbers always, sometimes or never true?
1 out of 3
Follow the clues to find the mystery number.
