1. EVERYTHING YOU NEED TO KNOW TO GET A GRADE C
NUMBER
(FOUNDATION)
AUTHOR

2. 14 50% No, Elena failed 75% Yes, Clyde passed 10% means ÷10 = = = =
70% of 20 questions
10% = 2 questions x7 x7
70% =
14 questions 14 = =
50%
No, Elena failed
75% = =
Yes, Clyde passed

3. 10% means ÷10 4
10% of £25 1 + - 1 1
10% = £2.50 2 5 . 2 2 . 5
22.50

4. £990 10% means ÷10 Martha Cost = £400 Husband Cost = £400 x
Martha Cost = £400
Husband Cost = £400 x
Mary (Daughter) Cost = 75% of £400
= £300 ÷
Total Cost =
= £1100
10% means ÷10
10% online discount=
10% of £1100
= £110
£990
Final Total Cost =
1100 – 110 =

5. 94 10% means ÷10 10% of 800 students 20% of 70 teachersx2 x2
20% =
14 teachers
Left-handed teacher and students = 94

6. 10% means ÷10
10% = 33 ÷2 x4 ÷2 x4
40% =
132
5% =
16.5
45% =
148.5

7. LEARN
12.5

8. U T
ths
8 is in the tenths column x ÷
27 x 3 81
10% means ÷10
10% = 27
2 7 0 6 1 x3 1 1 x3
30% = 81
8 1 1 8 9
189

9. Denominator never changes
When adding or subtracting fractions you need to find a common denominator 1 4 + 2 3
X 3
X 4
X 3
X 4 12 + 3 8 =
Denominator never changes 11 12 =

10. Test 1 =
Test 2 =
Test 1

11. 7 is in the tenths column
% means ‘out of 100’
2nd
3rd
1st = =

12. 5 Weekly income = 12 x £4 = £48 = £16 Savings per week =
= £16
Savings per week = ÷
Weeks to save £80 =
= 5 5

13. 25

14. 10% means ÷10 Bottle B 3 litres 2.5 litres 3000ml 2500ml Bottle Ax
55% of 3000ml
10% = 300ml ÷2 x5 ÷2 x5 ÷
50% =
1500ml 6 2 5
5% =
150ml 4 2 1 2
55% =
= 1650ml
625 x 3 =
1875ml
Bottle B

15. 770 Son Daughter Tom x x 2200 – 880 - 550 2200 – 1430 ÷ ÷ 5 5 4 4
2200 –
2200 – 1430 ÷ ÷ 5 5 4 4 5 4 2 2 2 2
440 x 2 =
880
770

16. 5 x 4 20
9 x 9 81
= 9 x x 3 =
= 90

17. Square numbers
1 , 4, 9, 16, 25, 36, 49, 64, 81 etc 28

18. means what multiplies by itself three times to make 125
11 x 11
121
12 x 12
144
means what multiplies by itself three times to make 125 5

19. When you multiply powers with the same base you can just add the powers
6 x 6 x 6 x 6
When you divide powers with the same base you can just subtract the powers
= 1

20. There are no whole numbers between 95.4 and 95.9
= 95.4
= 95.9
952= 9025
962 = 9216
There are no whole numbers between 95.4 and 95.9

21. = 4 + 3
= 5
= 7