Mathematical Treasure-hunt: Fractions Cut out each of the question slides and place them around the room, stick them on the walls if you wish. Print out and distribute the answer sheet, one per pupil, or team, and set them off to find the answers. The correct sequence is: 60, 4/6, 63, 10, 9, b, 3/7, 1/5, 45, 40, 48, 11, 30, D, 1/6, 17.5
Mathematical Treasure-hunt: Problems Name: Answer Sheet Mathematical Treasure-hunt: Problems Name: Answer Sheet
Mathematical Treasure-hunt: Problems 2/5 ? Mathematical Treasure-hunt: Problems 60 ? 25% of the apples in a basket are red. The rest are green. There are 21 red apples. How many green apples are there? A class contains 12 boys and 18 girls. What fraction of the class are boys?
Mathematical Treasure-hunt: Problems 10 ? Mathematical Treasure-hunt: Problems 63 ? A cup holds 50ml. How many cups can I pour from a half litre bottle? There are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day. How many hours should we spend sleeping?
Mathematical Treasure-hunt: Problems ? 9 ? Would you rather have: a)One quarter of $150 Or b) One third of $114? b What fraction of the circle is not shaded?
Mathematical Treasure-hunt: Problems ? ? 3/7 1/5 What fraction is the arrow pointing to? A pair of trainers has 25% off. They originally cost $60. How much is the sale price in pounds?
Mathematical Treasure-hunt: Problems ? ? 45 I am two eighths of 160. What number am I? 40 Multiply by 8 to find the answer.
Mathematical Treasure-hunt: Problems 11 ? Mathematical Treasure-hunt: Problems ? ? = I have eaten a third of a box of chocolates. There are 22 chocolates left over, how many have I eaten?
Mathematical Treasure-hunt: Problems D ? ? 30 Which letter completes the pattern? If = 1 = ?
Mathematical Treasure-hunt: Problems 17.5 ? Mathematical Treasure-hunt: Problems ? 1/6 One seventh of A is 25. Now divide A by 10. What do you have? What percentage of the shapes are quadrilaterals?