Puzzles to test mathematical skills. Set by Anita Straker. Solutions on page 31. More brainteasers on www.tes.co.ukteacherbrainteasers.
Use these four dominoes.
Arrange them in a square like this.
Each side of the square must add up to 7. Touching numbers do not need to match.
DARTS WITH A DIFFERENCE
Toni threw some darts at this board.
Every dart landed on the board.
Toni scored exactly 100.
How many darts did she throw?
Which numbers did they land on?
Answers from page 31
Toni threw eight darts. Six landed on 13 and two landed on 11.