Page 36 - Viva ICSE Computer Studies 7 : E-book

3. Binary addition is similar to _______________ addition.
4. Any quantity greater than 9 is represented by a contribution of _______________ or more
digits.
5. The number system consists of a set of _______________.

D. Convert the following.

1. (24) = (?) 2. (4D2) = (?) 3. (64A) = (?)
10 2 16 10 16 10
4. (344) = (?) 5. (10) = (?)
8 10 10 2

E. Answer the following questions.
1. Write the rules to perform the following conversions.

(a) Hexadecimal number system to decimal number system
(b) Octal number system to decimal number system
(c) Binary number system to decimal number system
(d) Decimal to binary number system
2. Add 101 with 101.

3. Subtract 11 from 101.
4. Multiply 111 with 001.

5. Divide 1101 with 111.
Building Values and Life Skills

What will you do on seeing your friend not being able to convert hexadecimal number system to
decimal number system?

Testing Knowledge

Why is there a need to convert the rest of the number systems to decimal number system?

Linking Knowledge

Mathematics: Convert the following.

1. (32) = (?) 2. (8D2) = (?)
10 2 16 10

Lab Fun

Gather information on ‘Number Systems’ and create a report in Word 2016. Format the document as
per your choice.

24