CBSE Class 8 Mathematics A Story of Numbers MCQs Set D

Question. Mayan symbol for number 5 is a.
(a) Dot
(b) Bar
(c) Circle
(d) Wedge

Answer: B

Question. Humans likely used base 10 because we have 10.
(a) Toes
(b) Fingers
(c) Teeth
(d) Eyes

Answer: B

Question. A standard sequence of symbols with a fixed order is called a.
(a) Drawing
(b) Number system
(c) Tally mark
(d) Name

Answer: B

Question. Symbols representing numbers in a written system are called.
(a) Letters
(b) Numerals
(c) Dots
(d) Sounds

Answer: B

Question. In Roman system, 40 is written as 10 less than 50 which is
(a) LX
(b) XL
(c) XX
(d) VV

Answer: B

Question. What is the human limit for immediately knowing the size of a collection at a glance, according to the chapter?
(a) Up to 5 or more objects
(b) Up to 10 objects
(c) Up to 20 objects
(d) Up to 3 objects

Answer: A

Question. Mayan symbols associated with landmark numbers were written.
(a) Side by side
(b) One below the other
(c) In a circle
(d) Randomly

Answer: B

Question. Third landmark number in Mayan system was.
(a) 100
(b) 360
(c) 400
(d) 1000

Answer: B

Question. Set of numbers closed under add, subtract, and multiply is called a.
(a) Ring
(b) Box
(c) Circle
(d) Group

Answer: A

Question. Indian discovery of zero is the basis for modern.
(a) Only music
(b) Only dance
(c) Science and technology
(d) Only drawing

Answer: C

Question. Numerals in the Chinese rod-based system are called.
(a) Tally marks
(b) Rod numerals
(c) Hindu numerals
(d) Roman numerals

Answer: B

Question. Chinese rod system was a.
(a) Binary system
(b) Decimal system
(c) Base-60 system
(d) Base-20 system

Answer: B

Question. What is the defining characteristic of a base-n number system according to the chapter?
(a) The first landmark number is 1, and every next landmark number is obtained by multiplying the current landmark number by some fixed number ‘n’.
(b) It uses only n symbols.
(c) It is a place value system.
(d) Each landmark number is 10 times the previous one.

Answer: A

Question. The Hindu number system is which type of system?
(a) Tally system
(b) Place value system
(c) Simple system
(d) Roman system

Answer: B

Question. The place value system represents unending numbers using only a.
(a) Infinite symbols
(b) Finite number of symbols
(c) Single symbol
(d) Many names

Answer: B

Question. In Chinese system, units and hundreds are represented by.
(a) Hengs
(b) Zongs
(c) Shells
(d) Dots

Answer: B

Question. In Chinese system, tens and thousands are represented by.
(a) Zongs
(b) Hengs
(c) Bars
(d) Wedges

Answer: B

Question. Skipping a place value in Chinese rods was shown by a.
(a) Circle
(b) Blank space
(c) Dot
(d) Cross

Answer: B

Question. Total number of symbols in Hindu number system is.
(a) 5
(b) 9
(c) 10
(d) 100

Answer: C

Question. Which of the following is not a landmark number in Roman Numerals
(a) 10
(b) 100
(c) 1000
(d) 10,000

Answer: C