Page 17 - trackpad v5.1 class 7 flipbook
P. 17
5. Think and answer.
a. What is a number system?
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b. Compare the decimal and hexadecimal number systems.
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c. Explain how to convert a binary number to a decimal number.
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d. What is the octal number system?
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e. Make the conversions to complete the following table:
Decimal Binary
22
11101
95
101110112
6. Solve the following:
a. Convert the following into the given number system and write their results:
(i) (1110) to decimal number system _________________
2
(ii) (75) to binary number system _________________
10
(iii) (1100101) to decimal number system _________________
2
(iv) (1001110) to decimal number system _________________
2
b. Perform the following operations on binary numbers:
(i) Subtract (1010) from (11100) 2 _________________
2
(ii) Add (1101) and (1010) _________________
2 2
(iii) Subtract (11001) from (100110) 2 _________________
2
(iv) Add (1000) and (101) _________________
2 2
Number System 15

