In Chapter 6 of the Number Play in Class 7 Maths, we will explore interesting patterns with even and odd numbers, sequences, magic squares, and the Fibonacci series. We will solve multiple-choice questions with four options and answers that test reasoning and the application of concepts. We will also practice solving fill-in-the-blank questions, which will help strengthen our memory of rules, formulas, and number properties.
Class 7 Maths Chapter 6 MCQ Number Play
Question 1: The sum of any two odd numbers is always ___?
a) Odd
b) Even
c) Prime
d) Multiple of 3
Answer:
b) Even
Question 2: The sum of an even number and an odd number is always ___?
a) Even
b) Odd
c) Prime
d) Composite
Answer:
b) Odd
Question 3: If there are 5 boxes and each must contain an odd number card, their sum will always be ___?
a) Even
b) Odd
c) Prime
d) Composite
Answer:
b) Odd
Question 4: In a group of 8 people arranged by height, what is the largest possible number someone can call out using the “taller in front” rule?
a) 6
b) 7
c) 8
d) 9
Answer:
b) 7
Question 5: If two consecutive numbers are added, their sum will always be ___?
a) Even
b) Odd
c) Prime
d) Composite
Answer:
b) Odd
Question 6: The nth even number can be expressed as ___?
a) 2n + 1
b) 2n – 1
c) 2n
d) n²
Answer:
c) 2n
Question 7: The nth odd number can be expressed as ___?
a) 2n
b) 2n – 1
c) n²
d) 2n + 2
Answer:
b) 2n – 1
Question 8: What is the 100th odd number?
a) 199
b) 200
c) 201
d) 198
Answer:
a) 199
Question 9: What is the 50th even number?
a) 99
b) 100
c) 98
d) 200
Answer:
b) 100
Question 10: The sum of numbers 1 to 9 is always ___?
a) 36
b) 40
c) 45
d) 50
Answer:
c) 45
Question 11: In a 3 × 3 magic square using numbers 1–9, each row adds up to ___?
a) 9
b) 12
c) 15
d) 18
Answer:
c) 15
Question 12: In a 3 × 3 magic square with numbers 1–9, the central number must be ___?
a) 1
b) 3
c) 5
d) 9
Answer:
c) 5
Question 13: The first number in the Virahanka–Fibonacci sequence is ___?
a) 0
b) 1
c) 2
d) 3
Answer:
b) 1
Question 14: The next term after 21 and 34 in the Virahanka–Fibonacci sequence is ___?
a) 45
b) 54
c) 55
d) 60
Answer:
c) 55
Question 15: The 8th term of the Virahanka–Fibonacci sequence is ___?
a) 21
b) 34
c) 55
d) 13
Answer:
b) 34
Question 16: The sum of two consecutive Fibonacci numbers gives the ___ Fibonacci number.
a) Next
b) Previous
c) Double
d) Square
Answer:
a) Next
Question 17: If n = 6, the number of 6-beat rhythms with short and long syllables is ___?
a) 8
b) 13
c) 21
d) 34
Answer:
b) 13
Question 18: The 20th term of the Fibonacci sequence is approximately closest to ___?
a) 6765
b) 4181
c) 2584
d) 987
Answer:
a) 6765
Question 19: In a 4 × 4 Chautisa Yantra magic square, every row adds to ___?
a) 24
b) 30
c) 34
d) 36
Answer:
c) 34
Question 20: If the central number in a 3 × 3 magic square is m, then the sum of any row is ___?
a) 2m
b) 3m
c) 9m
d) m + 10
Answer:
b) 3m
Question 21: Which of the following expressions always gives an even number?
a) 2n + 1
b) 2n
c) 3n + 1
d) n² + n
Answer:
b) 2n
Question 22: Which of the following expressions always gives an odd number?
a) 2n
b) 2n – 1
c) n²
d) n² + 2n
Answer:
b) 2n – 1
Question 23: The parity of the sum of an even number of odd numbers is always ___?
a) Odd
b) Even
c) Prime
d) Composite
Answer:
b) Even
Question 24: The parity of the sum of an odd number of odd numbers is always ___?
a) Odd
b) Even
c) Prime
d) Composite
Answer:
a) Odd
Question 25: The sum of the numbers from 1 to 100 is ___?
a) 5000
b) 5050
c) 4950
d) 5100
Answer:
b) 5050
Question 26: The parity of the sum of numbers from 1 to 100 is ___?
a) Odd
b) Even
c) Cannot be determined
d) Prime
Answer:
b) Even
Question 27: In cryptarithms, each letter stands for ___?
a) A variable
b) A digit (0–9)
c) A prime number
d) A fraction
Answer:
b) A digit (0–9)
Question 28: If T = 5 in the cryptarithm T + T + T = UT, then UT = ___?
a) 10
b) 15
c) 20
d) 25
Answer:
b) 15
Question 29: Which term in Fibonacci sequence is 144?
a) 10th
b) 11th
c) 12th
d) 13th
Answer:
c) 12th
Question 30: The number of ways to express 5 as a sum of 1’s and 2’s is ___?
a) 5
b) 6
c) 7
d) 8
Answer:
d) 8
Question 31: The number of ways to express 8 as a sum of 1’s and 2’s is ___?
a) 13
b) 21
c) 34
d) 55
Answer:
c) 34
Question 32: The number of different 3 × 3 magic squares using numbers 1–9 is approximately ___?
a) 10,000
b) 36,288
c) 362,880
d) 3,628,800
Answer:
c) 362,880
Question 33: In any 3 × 3 magic square using 1–9, the sum of all numbers is ___?
a) 36
b) 40
c) 45
d) 50
Answer:
c) 45
Question 34: Which number must never appear at the centre of a 3 × 3 magic square with numbers 1–9?
a) 3
b) 5
c) 7
d) 9
Answer:
d) 9
Question 35: The expression 4m – 1 always gives ___ numbers.
a) Even
b) Odd
c) Prime
d) Composite
Answer:
b) Odd
Question 36: The next term in Fibonacci sequence after 987 and 1597 is ___?
a) 1984
b) 2584
c) 2174
d) 2874
Answer:
b) 2584
Question 37: In the Virahanka–Fibonacci sequence, every term after the first two is the ___ of the previous two terms.
a) Product
b) Difference
c) Sum
d) Average
Answer:
c) Sum
Question 38: Which of the following is NOT true?
a) odd + odd = even
b) even + even = even
c) odd + even = odd
d) even – even = odd
Answer:
d) even – even = odd
Fill in the blanks on Number Play for Class 7 Maths
1. The sum of two odd numbers is always ___.
Answer:
even
2. The sum of an even number and an odd number is always ___.
Answer:
odd
3. The nth even number can be written as ___.
Answer:
2n
4. The nth odd number can be written as ___.
Answer:
2n – 1
5. The 25th odd number is ___.
Answer:
49
6. The sum of the first n natural numbers is given by the formula ___.
Answer:
n(n + 1)/2
7. The sum of the first 100 natural numbers is ___.
Answer:
5050
8. In a 3 × 3 magic square using 1 to 9, each row, column and diagonal adds up to ___.
Answer:
15
9. The middle number of a 3 × 3 magic square with numbers 1 to 9 is always ___.
Answer:
5
10. In a 4 × 4 Chautisa Yantra, every row adds up to ___.
Answer:
34
11. The Virahanka–Fibonacci sequence begins with ___ and 1.
Answer:
1
12. The first ten terms of the Fibonacci sequence are 1, 1, 2, 3, 5, 8, 13, 21, 34, and ___.
Answer:
55
13. The 12th term of the Fibonacci sequence is ___.
Answer:
144
14. Each term in the Fibonacci sequence is the ___ of the previous two terms.
Answer:
sum
15. The 20th term of the Fibonacci sequence is ___.
Answer:
6765
16. The expression 2n always represents an ___ number.
Answer:
even
17. The expression 2n – 1 always represents an ___ number.
Answer:
odd
18. In cryptarithms, each letter stands for a single ___.
Answer:
digit (0–9)
19. If T = 5 in the cryptarithm T + T + T = UT, then UT = ___.
Answer:
15
20. In any 3 × 3 magic square with numbers 1 to 9, the total sum of all numbers is ___.
Answer:
45
