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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? |
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Q.2 |
The sum of two rational numbers is –8. If one of the numbers is -21/8. Find the other number. |
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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? |
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Q.4 |
Find K in the given figure. |
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Q.5 |
A circular garden has a diameter of 14 metres. What is the area of the garden? |
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Q.6 |
Volume of a cube is 1331 cm3. What is the length of each side? |
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Q.7 |
PQRS is a rhombus. If PO = 4 cm and OQ = 3 cm then what is PR + SQ? |
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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? |
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Q.9 |
What is the square root of 1156? |
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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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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:
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