CREST Mental Maths Olympiad Class 9 Previous Year Paper

Helping your child prepare for the CREST Mental Maths Olympiad Class 9? Practising past question papers is a smart way to strengthen mental calculation skills and gain confidence before the exam.

Why Practise Previous Year Papers?

Focuses on advanced topics like Number System, Algebra, Comparing Quantities, Playing with Numbers and much more.
Improves speed, accuracy, and logical reasoning, crucial for excelling in Olympiads.
Familiarises students with the exam format to reduce anxiety and boost performance.

Download the Class 9 CREST Mental Maths Olympiad Previous Year Paper PDF and support your child's practice for better results!

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Syllabus:

Number System
Algebra
Comparing Quantities
Geometry
Mensuration
Playing with Numbers
Data Handling

Previous Year Questions

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	The mean of 11 observations is 50. If the mean of first Six observations is 49 and that of last six observations is 52, then find sixth observation.

Q.2	What are the two roots of the equation (x + 5)² - 36 = 0?

Q.3	Find the area of a triangle whose two sides are 16 cm and 12 cm respectively and the perimeter is 42 cm.

Q.4	The population of the town is 352800. If it increases at the rate of 5% per annum, then what will be its population for 2 years hence?

Q.5	Find two values of x which satisfy the quadratic equation x² – 64 = 0?

Q.6	What is the number of solid spheres of radius 1/2 cm, which may be formed from a solid sphere of radius 2 cm?

Q.7	Factorise: x⁴ - 2x²y² + y⁴

Q.8	Five years ago, the average age of P and Q was 15 years. Now, the average age of P, Q and R is 20 years. What would be the age of R after 10 years?

Q.9	In the given figure, PQRS is a rectangle. Find PR + QS.

Q.10	An equilateral triangle is cut up into smaller equilateral triangles with side 1/6 of the original. Find the number of triangles thus formed.

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Other Classes Previous Year Papers

Other Previous Year Papers

Answers to Previous Year Questions from CREST Olympiads:

Q.1	a	Q.2	a	Q.3	c	Q.4	b	Q.5	d	Q.6	d	Q.7	d	Q.8	b	Q.9	b	Q.10	c

Answers to Previous Year Questions from CREST Olympiads:

Q.1 : a | Q.2 : a | Q.3 : c | Q.4 : b | Q.5 : d | Q.6 : d | Q.7 : d | Q.8 : b | Q.9 : b | Q.10 : c