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Revision of skills

Finding Fractions of Amounts A quick way to remember what to do is: “Divide by the bottom, times by the top”

Finding Fractions of Amounts 2 7 If you are asked for of an amount 1 7 2 7 Find by dividing by 7 and then find by multiplying by 2. 2 7 To find of 35: 35 ÷ 7 = 5 5 x 2 = 10 2 7 of 35 is 10

Finding Fractions of Amounts 5 9 If you are asked for of an amount 1 9 5 9 Find by dividing by 9 and then find by multiplying by 5. 5 9 To find of 63: 63 ÷ 9 = 7 5 x 7 = 35 5 9 of 63 = 35

With a calculator… The amount… Divide by 100 Multiply by the percentage stated in the question… Find 37.5% of £120

Express a number as a percentage of another One number as a percentage of another identified number total amount ×100 Example 23 as a percentage of 25 23 25 ×100 Could come up in task 3

Ethan is following a healthy diet plan and is allowed 3000 calories and 30 grams of fat a day. He is trying to decide what to have for his lunch. If he chooses a chicken sandwich what percentage of his daily allowance of fat will that be?

To find the percentage change, you need to know this formula Percentage change is where we discover what percentage an amount has increased or decreased by. To find the percentage change, you need to know this formula Difference in amounts (new value−original value) Original amount X 100

Individual study/ assessment prep