Convert each decimal to a percentage, and each percentage to a decimal.
(a)Write 0.62 as a percentage.(1)
(b)Write 0.07 as a percentage.(1)
(c)Write 135% as a decimal.(1)
5
Write these four values in order, starting with the smallest: 3/5, 0.55, 62%, 3/8
(2)
6
Work out 3/4 + 5/6. Give your answer as a mixed number in its simplest form.
(2)
7
Work out 7/8 - 1/3. Give your answer in its simplest form.
(2)
8
Work out 2 3/5 + 1 7/10. Give your answer as a mixed number in its simplest form.
(3)
9
Work out 3/8 * 6. Give your answer as a mixed number in its simplest form.
(2)
10
Work out 2/3 * 3/5. Give your answer in its simplest form.
(2)
11
Work out 4/5 divided by 4. Give your answer in its simplest form.
(2)
12
Kwame has £72 in his savings account. He spends 5/8 of it on a new bicycle. How much money does he spend?
(2)
13
A school has 260 pupils. 15% of the pupils walk to school. How many pupils walk to school?
(3)
14
A recipe for flapjacks uses 3/4 of a bag of oats to make 8 flapjacks. Ffion wants to make 20 flapjacks. What fraction of a bag of oats does she need?
(3)
15
A coat normally costs £84. In a sale it is reduced by 25%. What is the sale price of the coat?
(3)
16
In a spelling test out of 40, Priya scored 34 marks.
(a)Write her score as a fraction of the total, in its simplest form.(2)
(b)Write her score as a percentage.(1)
17
Mohammed orders 3 pizzas, each cut into 8 equal slices. He and his friends eat 17 slices in total. What fraction of the pizza is left over? Give your answer in its simplest form.
(3)
18
Freya's weekly pocket money is £15. Her parents increase it by 1/5. She then spends 40% of her new pocket money on a book. How much money does she have left?
(4)
19
Aaliyah and Tomasz are saving for a games console that costs £180. Aaliyah has saved 3/5 of the cost. Tomasz has saved 70% of the cost. Work out how much more Tomasz has saved than Aaliyah.
(4)
20
A charity is packing gift bags. Each bag needs 3/4 of a metre of ribbon. The charity has 15 metres of ribbon in total, and has already used 2/5 of it on wrapping paper trims.
(a)How many metres of ribbon are left for gift bags?(2)
(b)How many complete gift bags can be made from the ribbon that is left? Show that your answer is correct.(3)
Mark scheme · KS2.M-FRAC2 Fractions, Decimals and Percentages Depth
Question 1
(a) B1 8 cao
(a) Answer: 8
(b) B1 24 cao
(b) Answer: 24
(c) B1 35 cao
(c) Answer: 35
Question 2
(a) B1 2/3 cao
(a) Answer: 2/3
(b) B1 3/4 cao
(b) Answer: 3/4
(c) B1 7/10 cao
(c) Answer: 7/10
Question 3
(a) B1 0.375 cao
(a) Answer: 0.375
(b) B1 0.35 cao
(b) Answer: 0.35
(c) B1 0.36 cao
(c) Answer: 0.36
Question 4
(a) B1 62% cao
(a) Answer: 62%
(b) B1 7% cao
(b) Answer: 7%
(c) B1 1.35 cao
(c) Answer: 1.35
Question 5
M1 at least three of the four values correctly converted to a common form, e.g. 3/5 = 0.6, 62% = 0.62, 3/8 = 0.375 oe
A1 3/8, 0.55, 3/5, 62% cao (fully correct order)
Answer: 3/8, 0.55, 3/5, 62%
Question 6
M1 common denominator of 12 used, e.g. 9/12 + 10/12 oe
A1 1 7/12 cao
Answer: 1 7/12
Question 7
M1 common denominator of 24 used, e.g. 21/24 - 8/24 oe
A1 13/24 cao
Answer: 13/24
Question 8
M1 2 3/5 converted to tenths, e.g. 2 6/10 oe
M1 whole numbers and fractions combined correctly, e.g. 3 + 13/10 oe
A1 4 3/10 cao
Answer: 4 3/10
Question 9
M1 18/8 oe seen
A1 2 1/4 cao
Answer: 2 1/4
Question 10
M1 6/15 oe seen
A1 2/5 cao
Answer: 2/5
Question 11
M1 4/20 oe seen
A1 1/5 cao
Answer: 1/5
Question 12
M1 72 / 8 = 9 (finds one eighth) oe
A1 £45 cao
Answer: £45
Question 13
M1 10% of 260 = 26 found oe
M1 5% of 260 = 13 found, ft from their 10%
A1 39 cao
Answer: 39 pupils
Question 14
M1 scale factor found, 20 / 8 = 5/2 oe (or oats per flapjack, 3/4 divided by 8 = 3/32)
M1 3/4 * 5/2 = 15/8 oe seen, ft
A1 1 7/8 bags cao
Answer: 1 7/8 bags of oats
Question 15
M1 25% of 84 found, e.g. 84 / 4 = 21 oe
dM1 84 - 21 set up, dependent on the previous method mark
A1 £63 cao
Answer: £63
Question 16
(a) M1 34/40 oe seen
(a) A1 17/20 cao
(a) Answer: 17/20
(b) B1 85% cao, ft from part a
(b) Answer: 85%
Question 17
M1 3 * 8 = 24 (total number of slices) oe
M1 24 - 17 = 7 (slices left), ft
A1 7/24 cao
Answer: 7/24
Question 18
M1 1/5 of 15 = 3 found oe
dM1 15 + 3 = 18 set up, dependent on the previous method mark
M1 40% of 18 = 7.20 found, ft
A1 £10.80 cao
Answer: £10.80
Question 19
M1 3/5 of 180 = 108 found oe
M1 70% of 180 = 126 found oe
dM1 126 - 108 set up, dependent on both previous method marks
A1 £18 cao
Answer: £18
Question 20
(a) M1 2/5 of 15 = 6 found oe
(a) A1 9 m cao
(a) Answer: 9 m
(b) M1 9 divided by 3/4 set up, e.g. 9 * 4/3, ft from part a
(b) A1 12 bags cao
(b) B1 cso; verification shown that 12 * 3/4 = 9, confirming the answer matches the ribbon available
(b) Answer: 12 gift bags (12 * 3/4 = 9 m, matching the ribbon available)