Math Olympiad for Class 4
Time: 1 hour
Instructions:
1. All questions are compulsory.
2. Each question carries 2 marks.
3. Write your answers clearly in the space provided.
Section A: Arithmetic and Number Theory
1. What is the sum of 345 and 678?
2. Subtract 297 from 563.
3. Multiply 23 by 7.
4. Divide 144 by 12.
5. List all prime numbers between 1 and 20.
6. Find the least common multiple (LCM) of 8 and 12.
7. What is the value of the digit 4 in the number 3748?
8. Write the number 2,037 in words.
9. What is the greatest common divisor (GCD) of 24 and 36?
10. Find the sum of the first 10 natural numbers.
Section B: Algebra
11. If x + 8 = 15 what is the value of x ?
12. Solve for y : y - 4 = 9
13. What is the next number in the sequence: 5, 10, 15, 20, ...?
14. If 3a = 21, what is the value of a ?
15. What is 7 + 4 times 3?
Section C: Geometry
16. How many sides does an octagon have?
17. What is the perimeter of a square with side length 6 cm?
18. Draw a line of symmetry on the given rectangle:
19. Calculate the area of a rectangle with length 8 cm and width 5 cm.
20. Name the shape with six equal sides.
Section D: Measurement
21. Convert 7 meters to centimeters.
22. If a bag of rice weighs 2 kilograms, how many grams is that?
23. How many minutes are there in 3 hours?
24. A pencil is 15 cm long. How many millimeters is that?
25. If a bottle holds 500 milliliters, how many liters is that?
Section E: Logical Reasoning
26. If you have 2 red balls, 3 blue balls, and 4 green balls in a box, what is the minimum number of balls you need to take out to ensure you have at least one ball of each color?
27. If the pattern is ■, ●, ■, ●, ■, ..., what will be the 7th shape in the pattern?
28. Find the missing number: 14, 21, 28, __, 42.
29. Sarah has 5 apples, and she buys 7 more. How many apples does she have in total?
30. If one chocolate costs 15 rupees, how many chocolates can you buy with 75 rupees?
Sample Questions Paper IMO
Good luck!
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