CBSE Class 7 Maths Chapter 6 Number Play Worksheet - Free Download

Section A: Multiple Choice Questions

Q1: Two consecutive numbers in the Virahãnka sequence are 377 and 610. What is the first of the next 2 numbers?
A) 987
B) 1597
C) 2584
D) 4181

Q2: The expression 4n + 3 generates numbers for different values of n. What is the parity of 4n + 3 when n = 3?
A) 0
B) 1
C) 2
D) 4

Q3: Anil wants to find the parity of the 10th term of the Virahãnka sequence. What is the parity?
A) 0
B) 1
C) 2
D) 3

Section B: Fill in the Blanks 

Q4: Solve the cryptarithm: X4 + Y = Z11. The value of X is ______.

Q5: Uneek wants to find all 5-beat rhythms (sums of 1’s and 2’s). The number of ways to write 5 as a sum of 1’s and 2’s is ______. 

Q6: Ishan has number cards with values 1, 3, 5, 7, and 9. She wants to select 3 cards that sum to 21. The number of ways to select 3 cards summing to 21 is _______. 

Section C: Word Problems

Q7: Priya and Rohan, two siblings born one year apart, celebrate their birthdays. Priya claims the sum of their ages is 25. Is this possible? 

Q8: Write the next 3 numbers in the sequence: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89. 

Q9: Two consecutive numbers in the Virahãnka sequence are 987 and 1597. What are the next 2 numbers in the sequence? 

Q10: A light bulb is OFF. A student toggles its switch 50 times. How many times is the bulb ON after 50 toggles? [Count ON state, 1 for ON, 0 for OFF.]

Q11: Using the generalized form, find a magic square if the center number is 13. 

Q12: Vanshika wants to climb a 9-step staircase, taking either 1 or 2 steps at a time. In how many different ways can she reach the top?

For Worksheet Solutions, go to Worksheet Solutions: Number Play