CREST Mental Maths Olympiad Class 8 Previous Year Papers

Q.1

Solve for "x":
69.69 – 51.54 + 73.64 = x + 32.42

Q.2

Solve:
7² + 8² - 11²

Q.3

Which number is divisible by 16?
46412892, 17427894, 7823682, 501008

Q.4

Find the square of 24.

Q.5

A bus travels at a speed of 80 km/h and covers a distance of 200 km. How long does the journey take?

Q.6

Anni has taken a loan of $9000 at a simple interest rate of 12% per annum for 4 years. Calculate the simple interest she will have to pay.

Q.7

Find the volume of a sphere whose radius is 8 cm.

Q.8

1/5 portion of a bamboo is in mud, 2/5 portion is in water and the remaining portion is above water. What portion is above water ?

Q.9

Find the missing number:
1, 3, 6, 10, 15, ?

Q.10

Find the term which does not fit into the series given below:
G4T, J10R, M20P, P43N