BrainUp Kids
Question Paper
Class / Subject: Class 9 (CBSE) · Mathematics
Chapter: Chapter 1 — Chapter 1: Number Systems
Time Allowed: 15 minutes
Max Marks: 6
Instructions: All questions are compulsory. Each question carries 1 mark. Choose the correct option for each question.
1. Which is irrational? [1]
(A) √2
(B) 1/2
(C) 0.5
(D) 3
2. An irrational number has a decimal expansion that is: [1]
(A) non-terminating and non-repeating
(B) always terminating
(C) always repeating
(D) always a whole number
3. √2 can be geometrically constructed on the number line using the: [1]
(A) Pythagoras theorem
(B) distributive property
(C) BODMAS rule
(D) divisibility rules
4. 8^(1/3) equals: [1]
(A) 2
(B) 4
(C) 8
(D) 3
5. Simplify: 2^(1/2) x 2^(1/2). [1]
(A) 2
(B) 4
(C) 1
(D) 2^(1/4)
6. a^(1/2) is another way of writing: [1]
(A) the square root of a
(B) a squared
(C) a divided by 2
(D) a times 2