Method : 15's complement of a number is obtained by subtracting all bits from F.

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1. Find 15's complement of 1B06

Solution:


Step-1: 15's complement of 1B06 is obtained by subtracting each digit from F

	F	F	F	F
-	1	B	0	6
	E	4	F	9

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So 15's complement of 1B06 is E4F9

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2. Find 15's complement of B06

Solution:


Step-1: 15's complement of B06 is obtained by subtracting each digit from F

	F	F	F
-	B	0	6
	4	F	9

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So 15's complement of B06 is 4F9

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3. Find 15's complement of 1234

Solution:


Step-1: 15's complement of 1234 is obtained by subtracting each digit from F

	F	F	F	F
-	1	2	3	4
	E	D	C	B

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So 15's complement of 1234 is EDCB

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4. Find 15's complement of B25C

Solution:


Step-1: 15's complement of B25C is obtained by subtracting each digit from F

	F	F	F	F
-	B	2	5	C
	4	D	A	3

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So 15's complement of B25C is 4DA3

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5. Find 15's complement of A1052

Solution:


Step-1: 15's complement of A1052 is obtained by subtracting each digit from F

	F	F	F	F	F
-	A	1	0	5	2
	5	E	F	A	D

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So 15's complement of A1052 is 5EFAD

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