1. Calculation Strategies
Year 6 SATs Revision
Maths 1
Calculation Strategies

2. Learning Objective Revision:
Column addition including adding decimals.
Column subtraction including subtracting decimals.

3. H T U 2 4 6 3 + 1 7 5 8 9
Adding Numbers

4. T U
1/10 3 7 2 4 9 + 1 6 5 8
Adding Decimals

5. H T U 3 7 2 5 8 - 1 9 6 4
Subtracting Numbers

6. T U
1/10 8 7 4 3 2 1 - 6 5 9 H
Subtracting Decimals

7. Learning Objective Revision: Multiply two digit numbers
Multiply decimal numbers.

8. H T U 3 7 2 8 4 5 x 9 1 6
Multiplying Numbers

9. Multiplying 2 Digit Numbers: Grid Method3 5 x 4 6 1 2 30 60
900
150
1050 20
1200
1220
120
+140
180
+183 9 =
Multiplying 2 Digit Numbers: Grid Method

10. Multiplying 2 Digit Numbers: Grid Method3 x 6 5 9 20 30 60
1200
180
1380
600
100
700
120 18
+138
270 45
+315 1 8 =
Multiplying 2 Digit Numbers: Grid Method

11. Multiplying Decimal Numbers: Grid Method
4.6 x 36 18
3.5 4
0.6 10 8 30
1200
180
1380 3
600
100
700 6
120
+138
0.5
270 45
+315 1 5 =
Multiplying Decimal Numbers: Grid Method

12. Learning Objective Revision:
Use bus stop method to divide including dividing with decimal remainders.

13. 4 3 ÷ 7 6 1 5 2 9
Dividing Numbers

14. Learning Objective
Revision:
Find fractions of quantities.

15. Finding Fractions of Numbers1
This is the numerator 3
This is the denominator
To find a fraction of a number you can do this:
Divide the whole number by the denominator.
Multiply this answer by the numerator. 1
1) 15 ÷ 3 = 5
2) 5 x 1 = 5
of 15
= 5 3

16. Linking Fractions and Division
Fractions and dividing are very similar. The denominator is what you divide by. Click on the fractions to match them to the division questions:
1/3 of 24
24 ÷ 3
= 8
1/6 of 24
24 ÷ 2
= 12
1/2 of 24
24 ÷ 8
= 3
1/8 of 24
24 ÷ 6
= 4

17. Finding More Fractions of Numbers
Divide the whole number by the denominator
Multiply this answer by the numerator.
Answer
2/3 of 21
21 ÷ 3 = 7
7 x 2 = 14 14
3/5 of 20
20 ÷ 5 = 4
4 x 3 = 12 12
3/4 of 16
16 ÷ 4 = 4
4 x 3 = 12 12
Remember:
Divide the whole number by the denominator.
Multiply this answer by the numerator.

18. Finding More Fractions of Numbers
Divide the whole number by the denominator
Multiply this answer by the numerator.
Answer
2/6 of 30
30 ÷ 6 = 5
5 x 2 = 10 10
3/10 of 50
50 ÷ 10 = 5
5 x 3 = 15 15
2/3 of 600
600 ÷ 3 = 200
200 x 2 = 400
400
Remember:
Divide the whole number by the denominator.
Multiply this answer by the numerator.

19. Finding Fractions of Numbers Click on the question to reveal the answer30 20 12
7/10 of 30
2/5 of 25
5/9 of 18 21 10 10
1/3 of 15
4/6 of 54
3/8 of 24 5 36 9
4/5 of 50
2/7 of 28
5/6 of 42 40 8 35

20. Fractions of Numbers Click on the question to reveal the answer
More Complicated
Fractions of Numbers Click on the question to reveal the answer
¾ of 50
¼ of 90
3/20 of 360
37.5
22.5 54
2/5 of 315
6/7 of 147
5/9 of 351
126
195
126
1/3 of 189
2/6 of 546
3/8 of 152 63
182 57

21. Learning Objective
Revision:
Find percentages of numbers.

22. Finding Percentages of Numbers
This box represents 40
30% of 40
100% = 40
90% = 36
80% = 32
Find 10% first. This can be done by dividing the number by 10
10% of 40 = 4
2) If 10% = 4, then 30% = 12 (there are 3 lots of 10% in 30%)
70% = 28
60% = 24
50% = 20
40% = 16
30% =12
20% = 8
10% = 4
30% of 40 = 12

23. Finding Percentages of Numbers
Find 10% first
Multiply this by how many lots of 10% there are
Answer
30% of 60
60 ÷ 10 = 6
6 x 3 = 18 18
60% of 20
20 ÷ 10 = 2
2 x 6 = 12 12
20% of 200
200 ÷ 10 = 20
20 x 2 = 40 40
Remember:
To find 10%, first divide the whole number by 10.

24. Finding Smaller Percentages of Numbers
This box represents 300. Each square is worth 1%
6% of 300
Find 1% first. This can be done by dividing the number by 100
1% of 300 = 3
2) If 1% = 3, then 6% = 18 (there are 6 lots of 1% in 6%) 3 6 9 12 15 18
6% of 300 = 18

25. Finding Percentages of Numbers
Find 1% first
Multiply this by how many lots of 1% there are
Answer
6% of 400
400 ÷ 100 = 4 24
4 x 6 = 24
15% of 80 12
80 ÷ 100 = 0.8
0.8 x 15 = 12
7% of 500
500 ÷ 100 = 5
5 x 7 = 35 35
Remember:
To find 1%, first divide the whole number by 100.

26. Finding Percentages of Numbers Click on the question to reveal the answer8
198 30
20% of 30
30% of 50
5% of 200 6 10 15
2% of 500
40% of 80
12% of 600 10 32 72
70% of 60
60% of 20
2% of 20,000 42 12
400

27. Percentages of Numbers Click on the question to reveal the answer
More Complicated
Percentages of Numbers Click on the question to reveal the answer
20% of 450
97% of 170
6% of 2,500 90
164.9
150
18% of 820
44% of 560
15% of 450
147.6
67.5
246.4
23% of 4,400
8% of 600
30% of 3,370
1,012 48
1,011