Percentage increase and decrease worksheet
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Percentage increase and decrease worksheet. (Calculators allowed)
L/O: To be able to accurately calculate percentage increases and decreases – and therefore become good shoppers…
REMEMBER TO SHOW YOUR WORKING, or you will lose marks in your SATs.
1. What is 25% of 60?
2. 30% of 125?
3. 96% of 200?
4. If a shop gives “25% off original price”, what percentage of the original price do you pay?
5. If the discount is 30%, what percentage of the original price do you pay?
6. If there is a 10% discount off a shirt which has an original price of £20:
a) What percentage of the original price do you pay?
b) How much money (in pounds) do you pay?
7. If there is a 40% discount off a book which has an original price of £50:
a) What percentage of the original price do you pay?
b) How much money (in pounds) do you pay?
8. If a promotional bag of flour has “20% extra free”, what percentage of a normal bag of flour do you get?
9. If a chocolate bar that is usually 100g has 25% extra free, how much chocolate (in grams) do you get in a bar?
10. (a) If a box of cereal normally has 500g in it, and costs £1.25, what is the cost of cereal in £ per kg?
(b) If a promotional pack of the cereal has 40% extra free:
- What is the mass (in grams) of a box?
- What is the cost of cereal in £ per kg?
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