Checking and securing finding a fraction of a given amount

12 questions

1. Match the equivalent ratios.
2. What symbol separates the parts of a ratio? E.g. the mathematical notation for writing 4 to 5.
3. Simplify 24 : 36
4. In a bag there are only triangles and squares. The ratio of triangles to squares is 3 : 1. There are 60 shapes in total. Who correctly worked out the number of squares?
5. Chocolates in a box either have red or blue wrappers. The ratio of red to blue is 5 : 4. If the difference between the red and blue chocolates is 3, how many chocolates are in the box?
6. Chocolates in a box either have red or blue wrappers. The ratio of red to blue is 3 : 2. Andeep eats 2 blue chocolates and now the ratio is 12 : 7. How many blues were in the box originally?
7. Which of the following is not the reciprocal of 4?
8. Use a bar model to calculate 3\over8 of 48
9. Calculate 60 × 3\over5
10. Which of the following are equivalent calculations for 5\over9 of 72?
11. Calculate 2 {{3} \over {5}} × 2\over7
12. Find 12 {{3} \over {5}} of 25

License: OGL