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5. (361) 10 1
7. (6) 3
10
2 1 1
Across
2. (101) 10 5
4. (100101101) 2 4 3 1
6. (1100) 2 7
8. (165) 6 1
10 8 1 1
9. (1010001)
2
10. (1101010)
2
9
10 0
Let's exPLore
Surf the Internet to find out the uses of the various number systems Century #Information Literacy
21 st
in different types of scenarios. Discuss with your teacher. Skills
21 st
Let's get Better Century #Communication
Skills
Organise a group discussion and discuss about the various number systems.
teCh PraCtiCe 21 st
Century #Critical Thinking
Skills
Solve the following:
1. Convert (10111.011) into its decimal equivalent.
2
2. Subtract (1101) from (100110) .
2
2
3. Add the following binary numbers.
a. (1000) and (101) b. (1011) and (101) c. (1001) and (101) 2
2
2
2
2
2
d. (1111) and (1111) e. (11001) and (10101) 2
2
2
2
4. Convert the following decimal numbers into binary.
a. (19) b. (98) c. (75)
10 10 10
d. (37) e. (54)
10 10
For The Teacher
Talk to the students about the importance of number systems and their use in computers.
Do a detailed walk-through of the decimal and binary number systems and their different operations in a
mathematically rigorous manner.
Give a brief on the octal and hexadecimal number systems.
16 Plus (Ver. 2.2)-VII

