May/June 2026 Paper 11

2026 · 8 questions · 33 parts · 75 marks

0/75 marks

0Correct0Partial0Wrong33Unattempted

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–/3 mks

2(a)(i)2(a)(ii)2(a)(iii)2(b)2(c)(i)2(c)(ii)

–/11 mks

3(a)3(b)3(c)3(d)3(e)3(f)

–/9 mks

4(a)4(b)4(c)4(d)

–/11 mks

5(a)5(b)5(c)5(d)

–/10 mks

–/10 mks

7(a)7(b)7(c)(i)7(c)(ii)7(d)

–/11 mks

8(a)8(b)(i)8(b)(ii)

–/10 mks

3(a)Binary Hexadecimal Data UnitsEasy1 mark

Hexadecimal and binary are two examples of a number system. Give one other example of a number system.

3(b)Binary Hexadecimal Data UnitsEasy1 mark

Convert the hexadecimal number 2A to an 8-bit binary number.

3(c)Binary Hexadecimal Data UnitsEasy1 mark

Convert the hexadecimal number 101 to a 12-bit binary number.

3(d)Binary Hexadecimal Data UnitsEasy1 mark

Convert the binary number 01110001 to a hexadecimal number.

3(e)Binary Hexadecimal Data UnitsEasy1 mark

Convert the binary number 001011011000 to a hexadecimal number.

3(f)Binary Arithmetic Signed NumbersMedium4 marks

Add the binary numbers 10011101 and 11110000 using binary addition. Give your answer in binary. Show all your working.

Bit	8	7	6	5	4	3	2	1	0
Carries		Table answer carry_7	Table answer carry_6	Table answer carry_5
		1	0	0	1	1	1	0	1
+		1	1	1	1	0	0	0	0
Answer	Table answer sum_8	Table answer sum_7	Table answer sum_6	Table answer sum_5	Table answer sum_4	Table answer sum_3	Table answer sum_2	Table answer sum_1	Table answer sum_0