# Mental Calculations (1)

In this worksheet, students perform mental calculations with mixed operations.

Key stage:  KS 2

Curriculum topic:   Number: Addition, Subtraction, Multiplication and Division

Curriculum subtopic:   Perform Mental Calculations

Difficulty level:

### QUESTION 1 of 10

In this worksheet, follow the instructions in the given order to get to the final answer.

All calculations should be done mentally.

Know all times tables up to 12 as well as division, addition and subtraction facts.

Example 1

3 → × 4+ 6÷ 3 → ?

Then 12 + 6 = 18.

Then 18 ÷ 3 = 6.

Example 2

132 → ÷ 11+ 6× 2÷ 12 → ?

Then 12 + 6 = 18.

Then 18 × 2 = 36.

Then 36 ÷ 12 = 3.

Work out:

5 → × 4+ 5÷ 5 → ?

Work out:

3 → × 6- 4÷ 2 → ?

Work out:

7 → × 7+ 1÷ 5 → ?

Work out:

9 → + 3+ 18÷ 5 → ?

Work out:

12 → + 4÷ 4- 4 → ?

Work out:

20 → + 4× 2÷ 6 → ?

Work out:

17 → + 4÷ 7× 12 → ?

Work out:

45 → ÷ 9+ 7÷ 4× 11 → ?

Work out:

108 → ÷ 12× 7- 9÷ 6 → ?

Work out:

7 → + 9× 2- 8÷ 4 → ?

• Question 1

Work out:

5 → × 4+ 5÷ 5 → ?

5
EDDIE SAYS
5 → 20 → 25 → 5
• Question 2

Work out:

3 → × 6- 4÷ 2 → ?

7
EDDIE SAYS
3 → 18 → 14 → 7
• Question 3

Work out:

7 → × 7+ 1÷ 5 → ?

10
EDDIE SAYS
7 → 49 → 50 → 10
• Question 4

Work out:

9 → + 3+ 18÷ 5 → ?

6
EDDIE SAYS
9 → 12 → 30 → 6
• Question 5

Work out:

12 → + 4÷ 4- 4 → ?

0
EDDIE SAYS
12 → 16 → 4 → 0
• Question 6

Work out:

20 → + 4× 2÷ 6 → ?

8
EDDIE SAYS
20 → 24 → 48 → 8
• Question 7

Work out:

17 → + 4÷ 7× 12 → ?

36
EDDIE SAYS
17 → 21 → 3 → 36
• Question 8

Work out:

45 → ÷ 9+ 7÷ 4× 11 → ?

33
EDDIE SAYS
45 → 5 → 12 → 3 → 33
• Question 9

Work out:

108 → ÷ 12× 7- 9÷ 6 → ?

9
EDDIE SAYS
108 → 9 → 63 → 54 → 9
• Question 10

Work out:

7 → + 9× 2- 8÷ 4 → ?

6
EDDIE SAYS
7 → 16 → 32 → 24 → 6
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