Page 15 - TP_Prime_V2.2_Class7
P. 15
Mind Drill
Rapid Fire
1. Tick (3) the correct option.
a. In the binary number system, right-most digit before the fractional point is called
___________.
(i) MSD (ii) LSD NUMBER SYSTEM
(iii) BSD (iv) Exponent
b. Which of the following number system has base 16?
(i) Binary number system (ii) Hexadecimal number system
13
(iii) Decimal number system (iv) Octal number system
c. Which of the following numbers are present in the binary number system?
(i) 1 and 2 (ii) 0 and 1
(iii) 8 and 9 (iv) 5 and 6
d. The decimal number (345) is equivalent to ___________.
10
(i) (101011001) (ii) (110111001)
2
2
(iii) (111011101) (iv) (111110001)
2
2
2. Write ‘T’ for true and ‘F’ for false.
a. A number system is simply a manner of counting. ________
b. The base of decimal number system is 10. ________
c. The word binary comes from 'Bi-' meaning two. ________
d. The octal number system is used as a shorthand representation
of long binary numbers. ________
e. The hexadecimal number system consists of 18 digits. ________
Evaluation Time
1. Fill in the blanks using the hints given below:
Binary, 0, 2, 8, 1, Decimal Number
a. In binary subtraction, 1 – 1 equals to _______________.
b. The base of binary number system is _______________.

