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Homework Worksheet 7 ICSE

The document is a homework assignment from the Sanskaar Valley School for the Class 7 Computer Science class. It contains problems involving converting between decimal, binary, octal, and hexadecimal number systems, as well as binary addition, subtraction, multiplication, and division. Students are asked to solve problems converting between and performing operations on numbers in different number bases.

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Sudha Pandey
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2K views2 pages

Homework Worksheet 7 ICSE

The document is a homework assignment from the Sanskaar Valley School for the Class 7 Computer Science class. It contains problems involving converting between decimal, binary, octal, and hexadecimal number systems, as well as binary addition, subtraction, multiplication, and division. Students are asked to solve problems converting between and performing operations on numbers in different number bases.

Uploaded by

Sudha Pandey
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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The Sanskaar Valley School

Class 7 – Computer Science

Home work sheet – Number System

Date: __/03/2018

1. Convert the following Decimal numbers to their Binary equivalents:


a) 15
b) 13
c) 24
d) 532
2. Convert the following Binary numbers to their Decimal equivalents:
a) 10101010
b) 11101100
c) 10000001
d) 10001111
3. Convert the following Octal numbers to their Decimal equivalents:
a) 128
b) 147
c) 457
d) 123
4. Convert the following Hexadecimal numbers to their Decimal equivalents:
a) B3AD
b) 3FF
c) 36C9
d) 45E

5. Binary Addition:
a) 101 + 11
b) 111 + 111
c) 1010 + 1010
d) 11101 + 1010
e) 11111 + 11111
6. Binary Subtraction:
a) 110 - 10
b) 101 - 11
c) 1001 - 11
d) 1101 - 11
e) 10001 - 100

7. Binary Multiplication:
a) 10 x 10
b) 100 x 11
c) 101 x 10
d) 1011 x 11
e) 11011 x 101

8. Binary Division:

a) 100 / 10
b) 111 / 11
c) 1010 / 100
d) 1101 / 11
e) 10111 / 10

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