Answers to Sample Questions from CREST Olympiads:
| Q.1 | d | Q.2 | a | Q.3 | c | Q.4 | c | Q.5 | d | Q.6 | c | Q.7 | d | Q.8 | c | Q.9 | c | Q.10 | b |
Maths Olympiad Questions For Class 6
1. Find the next term in the series given below.
3F, 6G, 11I, 18L, ?
a) 21O
b) 25N
c) 27P
d) 27Q
Answer: 27P
2. What is the difference between the face and place value of 3 in number 456783?
a) 0
b) 1
c) 2
d) 3
Answer: 0
3. The sum of 3 + 3 x 3(4 + 3) is:
a) 38
b) 42
c) 45
d) 66
Answer: 66
4. How many prime numbers are there between 10 and 20?
a) 7
b) 4
c) 3
d) 5
Answer: 4
5. Which of the following properties is incorrect with respect to the properties of whole numbers?
a) Addition and subtraction are commutative.
b) Division by 0 is not defined.
c) Multiplication is distributive over addition.
d) They are closed under addition and multiplication.
Answer: Addition and subtraction are commutative.
6. Complete the number series given below.
1, 4, 2, 8, 6, 24, 22, 88, (?)
a) 86
b) 352
c) 90
d) 154
Answer: 86
7. A bag contains 25-paise and 50-paise coins whose total value is Rs. 30. If the number of 25-paise coins is four times that of 50-paise coins, then find the number of each type of coins?
a) 40 and 30
b) 20 and 40
c) 80 and 20
d) 60 and 20
Answer: 80 and 20
8. Fill in the blank:
1 million = _______ hundred thousand.
a) One
b) Ten
c) Hundred
d) Twenty
Answer: Ten
9. Virat can type 28 words per minute. At this rate, how many words can Virat type in 5.5 minutes?
a) 154
b) 157
c) 159
d) 162
Answer: 154
10. Convert 5 km into metre.
a) 500 m
b) 50 m
c) 5000 m
d) 5 m
Answer: 500 m
11. The numbers which are multiples of 2 are called -
a) odd
b) even
c) prime
d) composite
Answer: even
12. If ‘+’ means ×, ‘–’ means ÷, ‘×’ means –, and ‘÷’ means +, then 16 ÷ 64 – 8 × 4 + 2 = ?
a) 12
b) 16
c) 18
d) 24
Answer: 18
13. Where do we place the positive numbers on a vertical number line with respect to 0?
a) Above
b) One its left side
c) One its right side
d) Below
Answer: Above
14. The measurement of an angle is 180?. Which one of the following types of angle is this?
a) Right angle
b) Straight angle
c) Reflex angle
d) All of these
Answer: Straight angle
15. A number which is a factor of every number is ___.
a) 0
b) 1
c) 2
d) 5
Answer: 1
16. Every number is a ____ and a ____ of itself.
a) factor, multiple
b) prime, composite
c) even, odd
d) none
Answer: factor, multiple
17. 234 + 456 =456 + 234. Which property is depicted in this sum?
a) Associative
b) Commutative
c) Closure
d) Distributive
Answer: Associative
18. How many lines of symmetry does a semi-circle have?
a) Two
b) One
c) Three
d) Four
Answer: One
19. Which of the following property cannot be applied for subtraction?
a) Associative
b) Closure
c) Distributive
d) All of the above
Answer: Closure
20. Find the number which when multiplied by 12 gives 36.
a) 3
b) 8
c) 4
d) 12
Answer: 3
21. The additive identity of any whole number is _______.
a) 1
b) 0
c) Number itself
d) None of the above
Answer: 1
22. Convert 45/1000 into decimals
a) 0.045
b) 0.450
c) 000.45
d) 0.45
Answer: 0.045
23. Find the LCM of 9, 14, 15, 18, 12.
a) 126
b) 252
c) 630
d) 1260
Answer: 1260
24. Find the equivalent fraction of 5/7 with denominator 21.
a) 25/21
b) 8/21
c) 15/21
d) 2/21
Answer: 15/21
25. Which of the following is an example of an even number?
a) 10351
b) 20989
c) 69007
d) 973572
Answer: 973572
26. 47.521 L is equal to:
a) 47521 ml
b) 75214 ml
c) 45217 ml
d) 72514 m
Answer: 47521 ml
27. Add : 26.102 + 6.33
a) 32.342
b) 86.432
c) 32.432
d) 86.135
Answer: 32.432
28. Product of a number by 3 is equal to 171 then the number is:
a) 53
b) 63
c) 57
d) 97
Answer: 57
29. Expanded form of M + DC + LXX + IX = ?
a) 1015
b) 1679
c) 1999
d) 2000
Answer: 1679
30. Find the value of X in the given expression.
832.58 – 242.31 = 779.84 – X
a) 179.57
b) 199.57
c) 295.05
d) 189.57
Answer: 189.57
31. Which of the following is the nearest ten for [53]?
a) 70
b) 20
c) 50
d) 60
Answer: 50
32. A table-cover measures 2 m 45 cm by 1 m 25 cm. Find the perimeter of the table cover.
a) 6 m 80 cm
b) 7 m 40 cm
c) 8 m 70 cm
d) 7 m 70 cm
Answer: 7 m 40 cm
33. If '+' means '÷', '×' means '–', '–' means '×' and '÷' means '+' then what is the value of given below statement?
38 + 19 – 16 × 17 ÷ 3
a) 18
b) 17
c) 16
d) 12
Answer: 18
34. Which of the following fractions is the greatest? 4/7, 4/9, 4/9, 7/8, 1/3
a) 4/7
b) 7/6
c) 4/9
d) 7/8
Answer: 7/8
35. Solve the following Roman numerals.
LIX + XXXVI + IX + XC – LX
a) CXXXXVI
b) CXXXLIV
c) CXXVII
d) CXXXIV
Answer: CXXXIV
36. One billion equals
a) 1 Crore
b) 10 Crore
c) 100 Crore
d) 1000 Crore
Answer: 100 Crore
37. If 2x + 3 = 5, which of the following is the value of ‘x’?
a) -4
b) 4
c) -1
d) 1
Answer: 1
38. Fill in the box: 500 + 55 = 400+ [?]
a) 55
b) 100
c) 155
d) 500
Answer: 500
39. If the dividend and divisor have unlike signs, what is the sign of the quotient?
a) positive
b) negative
c) zero
d) indeterminate
Answer: negative
40. A book of 1,456 pages has 9,95,904 words in it. The number of words in each page is _______.
a) 584
b) 684
c) 675
d) 595
Answer: 684
41. Evaluate: 7×|−15|−|−9|×8
a) 22
b) 33
c) 11
d) −120
Answer: 33
42. Which of the following number is divisible by 3?
a) 18
b) 60
c) 24
d) All of the above
Answer: All of the above
43. Find the sum of the given expression.
(–172) + (–40) + 5 + (–425) + (–275) + 600 – (–15)
a) 315
b) –21
c) 40
d) –292
Answer: –292
44. Complete the series 1, 15, 16, 31, 47, 78, 125, _______
a) 167
b) 139
c) 72
d) 203
Answer: 203
45. Choose the correct option:
The HCF and LCM of two numbers are 84 and 21, respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is:
a) 12
b) 48
c) 84
d) 108
Answer: 84
46. A basket contains 300 mangoes. 75 mangoes were distributed among students. The percentage of mangoes left in the basket is
a) 25%
b) 30%
c) 50%
d) 75%
Answer: 75%
47. 50 chairs and 30 blackboards were purchased for a school. If each chair costs Rs. 1065 and each blackboard costs Rs. 1645, then find the total amount of the bill:
a) Rs. 102,060
b) Rs. 106,500
c) Rs. 120,650
d) Rs. 102,600
Answer: Rs. 102,600
48. The LCM of two numbers is 27. The numbers cannot be____.
a) 3, 27
b) 1, 27
c) 3, 9
d) 9, 27
Answer: 3, 9
49. Which of the following fractions is closest to 0 ?
a) 5/12
b) 2/3
c) 5/6
d) 3/4
Answer: 5/12
50. The ratio of two numbers is 3:7. If the sum of the numbers is 700, find the two numbers:
a) 210,490
b) 270, 490
c) 110, 490
d) 110, 650
Answer: 210, 490
Every student taking the CREST Olympiads examinations for class 6 expects to achieve tremendous success. The key to success in the Mathematics Olympiad exam is to regularly practice Maths Olympiad questions. Reviewing previous years' papers and taking practice tests will help candidates identify their strengths and weaknesses.
CREST Olympiads provides Maths Olympiad sample papers for class 6 which can be practiced and easily downloaded by candidates. This means of preparation for the CREST Mathematics Olympiad works best for achieving good marks and enables kids to manage time during the examination. Download your set of sample papers today from CREST Olympiads. Maths Olympiad previous years’ question papers for class 6 are available in other subjects also.
