Integer arithmetic (add / subtract / multiply / divide)

Mark scheme and answers · Total marks: 34

Question 1 [1 mark]

72

Mark scheme
  • A [1] — cao 72

Accept algebraically equivalent correct forms.

Question 2 [1 mark]

15

Mark scheme
  • A [1] — cao 15

Accept algebraically equivalent correct forms.

Question 3 [1 mark]

8

Mark scheme
  • A [1] — cao 8

Accept algebraically equivalent correct forms.

Question 4 [1 mark]

2110

Mark scheme
  • A [1] — cao 2110

Accept algebraically equivalent correct forms.

Question 5 [1 mark]

1018

Mark scheme
  • A [1] — cao 1018

Accept algebraically equivalent correct forms.

Question 6 [1 mark]

27

Mark scheme
  • A [1] — cao 27

Accept algebraically equivalent correct forms.

Question 7 [1 mark]

6

Mark scheme
  • A [1] — cao 6

Accept algebraically equivalent correct forms.

Question 8 [1 mark]

1081

Mark scheme
  • A [1] — cao 1081

Accept algebraically equivalent correct forms.

Question 9 [1 mark]

30

Mark scheme
  • A [1] — cao 30

Accept algebraically equivalent correct forms.

Question 10 [1 mark]

24

Mark scheme
  • A [1] — cao 24

Accept algebraically equivalent correct forms.

Question 11 [1 mark]

253

Mark scheme
  • A [1] — cao 253

Accept algebraically equivalent correct forms.

Question 12 [1 mark]

91

Mark scheme
  • A [1] — cao 91

Accept algebraically equivalent correct forms.

Question 13 [1 mark]

12

Mark scheme
  • A [1] — cao 12

Accept algebraically equivalent correct forms.

Question 14 [1 mark]

216

Mark scheme
  • A [1] — cao 216

Accept algebraically equivalent correct forms.

Question 15 [1 mark]

9999

Mark scheme
  • A [1] — cao 9999

Accept algebraically equivalent correct forms.

Question 16 [1 mark]

45

Mark scheme
  • A [1] — cao 45

Accept algebraically equivalent correct forms.

Question 17 [1 mark]

54

Mark scheme
  • A [1] — cao 54

Accept algebraically equivalent correct forms.

Question 18 [1 mark]

168

Mark scheme
  • A [1] — cao 168

Accept algebraically equivalent correct forms.

Question 19 [1 mark]

43

Mark scheme
  • A [1] — cao 43

Accept algebraically equivalent correct forms.

Question 20 [1 mark]

91

Mark scheme
  • A [1] — cao 91

Accept algebraically equivalent correct forms.

Question 21 [1 mark]

152

Mark scheme
  • A [1] — cao 152

Accept algebraically equivalent correct forms.

Question 22 [1 mark]

32768

Mark scheme
  • A [1] — cao 32768

Accept algebraically equivalent correct forms.

Question 23 [1 mark]

108

Mark scheme
  • A [1] — cao 108

Accept algebraically equivalent correct forms.

Question 24 [1 mark]

633

Mark scheme
  • A [1] — cao 633

Accept algebraically equivalent correct forms.

Question 25 [1 mark]

313

Mark scheme
  • A [1] — cao 313

Accept algebraically equivalent correct forms.

Question 26 [1 mark]

400

Mark scheme
  • A [1] — cao 400

Accept algebraically equivalent correct forms.

Question 27 [2 marks]

9010

Mark scheme
  • A [2] — cao 9010

Accept algebraically equivalent correct forms.

Question 28 [2 marks]

356

Mark scheme
  • A [2] — cao 356

Accept algebraically equivalent correct forms.

Question 29 [2 marks]

73

Mark scheme
  • A [2] — cao 73

Accept algebraically equivalent correct forms.

Question 30 [2 marks]

31

Mark scheme
  • A [2] — cao 31

Accept algebraically equivalent correct forms.