Page 16 - TP_Prime_V2.2_Class7
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c. The base of _______________ system is 10.
d. In binary addition, 1 + 0 is equal to _______________.
e. The octal number system consists of _______________ digits.
f. Computer system understands _______________ numbers.
2. Short answer type questions.
a. What is an octal number system?
Prime (Ver. 2.2)-VII 3. Long answer type questions.
b. How many bits are there in 1 nibble?
c. Define the term base in number system.
a. What is number system? Explain.
b. What are the rules to convert a decimal number into a binary number?
c. Write the rules to subtract two binary numbers.
4. Solve the following:
14
a. Subtract (1101) from (100110) .
2
2
b. Add the following binary numbers:
(i) (1000) and (101) 2 (ii) (1011) and (101) (iii) (1001) and (101) 2
2
2
2
2
(iv) (1111) and (1111) (v) (11001) and (10101) 2
2
2
2
21 st
Century #Critical Thinking
5. Competency-based/Application-based questions. Skills
a. Rahul plays a video game where he earns points based on his performance. He
scored 101101 points in binary. Help him convert his score to decimal to find
out how many points he actually earned.
b. Anjali is solving a puzzle where she needs to find the greater number between 45 in decimal
and 101101 in binary. Help her convert the binary number to decimal and determine which
number is greater.
Activity Time 21 st #Critical Thinking
Century
Skills
Solve the crossword by filling it with equivalent decimal numbers or binary numbers.
Down
1. (10101) 2
3. (1111011) 2
5. (361)
10
7. (6)
10

