Sensible estimates

Mark scheme and answers · Total marks: 38

Rate this booklet

How would you rate this worksheet overall (questions, layout, and answers together)? Tap the stars from the left up to the score you mean, then press Confirm rating. You can change your mind any time.

Average: 4.3 / 5 · sample

Question 1 [1 mark]

9

Mark scheme
  • A [1] — cao 750

Accept algebraically equivalent correct forms.

Question 2 [1 mark]

7

Mark scheme
  • A [1] — cao 45

Accept algebraically equivalent correct forms.

Question 3 [1 mark]

30

Mark scheme
  • A [1] — cao 10

Accept algebraically equivalent correct forms.

Question 4 [1 mark]

5

Mark scheme
  • A [1] — cao £3100.00

Accept algebraically equivalent correct forms.

Question 5 [1 mark]

10

Mark scheme
  • A [1] — cao 30

Accept algebraically equivalent correct forms.

Question 6 [1 mark]

100

Mark scheme
  • A [1] — cao 100

Accept algebraically equivalent correct forms.

Question 7 [1 mark]

50

Mark scheme
  • A [1] — cao 5

Accept algebraically equivalent correct forms.

Question 8 [1 mark]

0.9

Mark scheme
  • A [1] — cao 61

Accept algebraically equivalent correct forms.

Question 9 [1 mark]

5

Mark scheme
  • A [1] — cao 55

Accept algebraically equivalent correct forms.

Question 10 [1 mark]

40

Mark scheme
  • A [1] — cao £45.00

Accept algebraically equivalent correct forms.

Question 11 [1 mark]

£18.00

Mark scheme
  • A [1] — cao 22

Accept algebraically equivalent correct forms.

Question 12 [1 mark]

25

Mark scheme
  • A [1] — cao 10

Accept algebraically equivalent correct forms.

Question 13 [1 mark]

400

Mark scheme
  • A [1] — cao 10

Accept algebraically equivalent correct forms.

Question 14 [1 mark]

20

Mark scheme
  • A [1] — cao 30

Accept algebraically equivalent correct forms.

Question 15 [1 mark]

60

Mark scheme
  • A [1] — cao 50500

Accept algebraically equivalent correct forms.

Question 16 [1 mark]

£30000.00

Mark scheme
  • A [1] — cao £25000.00

Accept algebraically equivalent correct forms.

Question 17 [1 mark]

2400

Mark scheme
  • A [1] — cao 12

Accept algebraically equivalent correct forms.

Question 18 [1 mark]

1000

Mark scheme
  • A [1] — cao £21.00

Accept algebraically equivalent correct forms.

Question 19 [1 mark]

50

Mark scheme
  • A [1] — cao 1000

Accept algebraically equivalent correct forms.

Question 20 [2 marks]

600

Mark scheme
  • A [2] — cao 750 m³

Accept algebraically equivalent correct forms.

Question 21 [1 mark]

75

Mark scheme
  • A [1] — cao 500 cm³

Accept algebraically equivalent correct forms.

Question 22 [1 mark]

40

Mark scheme
  • A [1] — cao 17

Accept algebraically equivalent correct forms.

Question 23 [1 mark]

9

Mark scheme
  • A [1] — cao 36 m

Accept algebraically equivalent correct forms.

Question 24 [2 marks]

21

Mark scheme
  • A [2] — cao 60

Accept algebraically equivalent correct forms.

Question 25 [2 marks]

6

Mark scheme
  • A [2] — cao 40

Accept algebraically equivalent correct forms.

Question 26 [2 marks]

90

Mark scheme
  • A [2] — cao 300

Accept algebraically equivalent correct forms.

Question 27 [2 marks]

40

Mark scheme
  • A [2] — cao 20

Accept algebraically equivalent correct forms.

Question 28 [2 marks]

750

Mark scheme
  • A [2] — cao 38%

Accept algebraically equivalent correct forms.

Question 29 [2 marks]

40

Mark scheme
  • A [2] — cao 880 g

Accept algebraically equivalent correct forms.

Question 30 [2 marks]

1500

Mark scheme
  • A [2] — cao 2 hours

Accept algebraically equivalent correct forms.