Question Paper
Class / Subject: Class 7 (CBSE) · Mathematics
Chapter: Chapter 6 — Chapter 6: Number Play
Time Allowed: 15 minutes
Max Marks: 6
1. In a magic square, sums across rows and columns are: [1]
(A) equal
(B) different
(C) always zero
(D) random
2. A 3x3 magic square using numbers 1-9 has a magic constant of: [1]
(A) 15
(B) 9
(C) 45
(D) 10
3. A puzzle where letters represent digits in an arithmetic problem is called a: [1]
(A) cryptarithm
(B) magic square
(C) palindrome
(D) Sudoku
4. A number is divisible by 3 if: [1]
(A) its digit sum is divisible by 3
(B) it is even
(C) it ends in 0
(D) it is a prime number
5. A number is divisible by 4 if: [1]
(A) its last two digits form a number divisible by 4
(B) its last digit is 4
(C) its digit sum is 4
(D) it is an even number only
6. Check if 234 is divisible by 3: digit sum = 2+3+4 = 9. Since 9 is divisible by 3, 234 is: [1]
(A) divisible by 3
(B) not divisible by 3
(C) divisible by 9 only
(D) not determinable