CREST Mental Maths Olympiad Class 8 Sample Paper

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Syllabus:

Number System
Algebra
Square and Square Roots
Cube and Cube Roots
Comparing Quantities
Mensuration
Playing with Numbers
Data Handling and Symmetry
Geometry

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10

Q.1

If x stands for -, / stands for +, + stands for / and - stands for x, which one of the following equations is correct?

Q.2

The sum of two rational numbers is –8. If one of the numbers is -21/8. Find the other number.

Q.3

Average of marks obtained by 105 candidates in a certain examination is 25. If the average marks of passed candidates is 29 and that of the failed candidates is 10, what is number of candidates who passed the examination?

Q.4

Find K in the given figure.

Q.5

A circular garden has a diameter of 14 metres. What is the area of the garden?

Q.6

Volume of a cube is 1331 cm3. What is the length of each side?

Q.7

PQRS is a rhombus. If PO = 4 cm and OQ = 3 cm then what is PR + SQ?

Q.8

30 persons can complete a piece of work in 18 days. How many more persons needed if the work is to be completed in 12 days?

Q.9

What is the square root of 1156?

Q.10

A train travels at a speed of 80 km/h for 2 hours and then at a speed of 60 km/h for the next 3 hours. What is the average speed of the train for the entire journey?

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Answers to Sample Questions from CREST Olympiads:

Q.1cQ.2aQ.3aQ.4dQ.5bQ.6cQ.7aQ.8cQ.9bQ.10d

Students can practise and prepare for the CREST Mental Maths Olympiad (CMMO) by utilising the above Mental Maths sample paper for class 8. The pdf is free to download & answer key to the questions is also provided.

The following are the advantages of solving Mental Maths competition sample papers for class 8 before taking the exam:

  1. The most significant advantage is that it allows students to become acquainted with the exam format & the types of questions that may appear in the final exam.
  2. These help students identify important topics and concepts that need more attention.
  3. Students can improve their time management for answering questions by practising class 8 Mental Maths competition sample papers on a routine basis.
  4. Students can monitor their progress and work on improving their weaknesses by practising the sample questions on a regular basis.

Answers to Sample Questions from CREST Olympiads:

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

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