Download Multiples and factors quiz

L1
Multiples and factors quiz
Level A
1. 18, 27 and 36 are all multiples of nine.
A) True
B) False
2. 500 is a multiple of 200.
A) True
B) False
3. Which list is made up of multiples of 12?
A) 1, 12, 48
B) 12, 24, 36
C) 12, 22, 32
4. The digit sums (the one digit answer you get when you add the digits together) of multiples of
9 are always 9.
A) True
B) False
5. Thirty has this many factors.
A) 8
B) 6
C) 7
6. Twenty three has only two factors.
A) True
B) False
7. The factors of 64 include...
A) 1, 6, 8
B) 1, 8, 16
C) 1, 5, 8
© BBC 2011
L1
Multiples and factors quiz
8. The missing number in this sequence 11, 22, 33, ___, 55 is...
A) 45
B) 43
C) 44
9. The next number in this sequence 8, 23, 38, 53, ___ is...
A) 68
B) 78
C) 73
10. The fifth square number is...
A) 16
B) 25
C) 36
© BBC 2011
L1
Multiples and factors quiz
Level B
1. 32, 64 and 80 are all multiples of 16.
A) True
B) False
2. 52 is a multiple of 18.
A) True
B) False
3. Which list is made up of multiples of 17?
A) 17, 35, 51
B) 17, 35, 54
C) 17, 34, 51
4. The sixth multiple of twenty is...
A) 60
B) 100
C) 120
5. One of the pairs of factors of 18 is 1 × 18, what are the other pairs?
A) 2 × 9
B) 2 × 6, 3 × 9
C) 2 × 9, 3 × 6
6. The factors of 81 are...
A) 1, 3, 9, 21, 27, 81
B) 1, 3, 9, 18, 27, 81
C) 1, 3, 9, 27, 81
7. 4 is a common factor of 12 and 16.
A) False
B) True
© BBC 2011
L1
Multiples and factors quiz
8. What is the missing number in this sequence?
1, 2, 4, 8, __
A) 10
B) 12
C) 16
9. The second triangular number is 3.
A) True
B) False
10. Nine is a triangular number.
A) True
B) False
© BBC 2011
L1
Multiples and factors quiz
Level C
1. 38, 58 and 76 are all multiples of 19.
A) True
B) False
2. Which of the following numbers is not a factor of 48: 1, 8, 12, 20, or 24?
A) 12
B) 20
C) 8
3. The second cubed number is 8.
A) True
B) False
4. The digit sums (the one digit answer you get when you add the digits together) of multiples of
3 are always 3.
A) True
B) False
5. One of the pairs of factors of 24 is 1 × 24, what are all the other pairs?
A) 2 × 12, 3 × 9, 4 × 6
B) 2 × 12, 3 × 8, 4 × 5
C) 2 × 12, 3 × 8, 4 × 6
6. The next number in the sequence 4, 9, 19 is...
A) 39
B) 29
C) 36
7. The next number in the sequence 1, 3, 6, 10 is...
A) 12
B) 14
C) 15
© BBC 2011
L1
Multiples and factors quiz
8. The third cubed number is...
A) 9
B) 18
C) 27
9. 12 is a common factor of 20 and 36.
A) True
B) False
10. 12 is a common factor of 48 and 56.
A) False
B) True
© BBC 2011
L1
Multiples and factors quiz
Answers
Level A
1. 18, 27 and 36 are all multiples of nine.
The correct answer is: A. True. 9 × 2 = 18, 9 × 3 = 27 and 9 × 4 = 36.
2. 500 is a multiple of 200.
The correct answer is: B. False. 500 is a multiple of 20, but not a multiple of 200. 600 is a
multiple of 200.
3. Which list is made up of multiples of 12?
The correct answer is: B. 12, 24, 36 are all multiples of 12.
4. The digit sums (the one digit answer you get when you add the digits together) of multiples of
9 are always 9.
The correct answer is: A. True. 18: 1 + 8 = 9; 27: 2 + 7 = 9; 36: 3 + 6 = 9 and so on.
5. Thirty has this many factors.
The correct answer is: A. 8. There are eight factors of 30, they are: 1, 2, 3, 5, 6, 10, 15, 30.
6. Twenty three has only two factors.
The correct answer is: A. True. 23 is a prime number – it can only be divided by 1 and itself
(23).
7. The factors of 64 include...
© BBC 2011
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Multiples and factors quiz
The correct answer is: B. 1, 8, 16 are all factors of 64.
8. The missing number in this sequence 11, 22, 33, ___, 55 is:
The correct answer is: C. 44. This sequence is the 11 times table.
9. The next number in this sequence 8, 23, 38, 53, ___ is:
The correct answer is: A. 68. Each term is 15 more than the one before it.
10. The fifth square number is:
The correct answer is: 25. B. The fifth square number is 5 × 5, so 25 is the correct answer.
© BBC 2011
L1
Multiples and factors quiz
Level B
1. 32, 64 and 80 are all multiples of 16.
The correct answer is: A. True. 16 × 2 = 32, 16 × 4 = 64 and 16 × 5 = 80.
2. 52 is a multiple of 18.
The correct answer is: B. False. The nearest multiple is 54 (3 × 18 = 54).
3. Which list is made up of multiples of 17?
The correct answer is: C. 17, 34, 51 are multiples of 17.
4. The sixth multiple of twenty is...
The correct answer is: C. 120 is correct. 6 × 20 = 120.
5. One of the pairs of factors of 18 is 1 × 18, what are the other pairs?
The correct answer is: C. 2 × 9, 3 × 6. Along with 1 × 18 these are the other pairs of factors of
18.
6. The factors of 81 are...
The correct answer is: C. 1, 3, 9, 27, 81. These are the only factors of 81.
7. 4 is a common factor of 12 and 16.
The correct answer is: B. True. 4 is a common factor of 12 and 16.
© BBC 2011
L1
Multiples and factors quiz
8. What is the missing number in this sequence?
1, 2, 4, 8, __
The correct answer is: C. 16. Each term is twice the one before.
9. The second triangular number is 3.
The correct answer is: A. True. The second triangular number is 3.
10. Nine is a triangular number.
The correct answer is: B. False. Nine is not a triangular number.
© BBC 2011
L1
Multiples and factors quiz
Level C
1. 38, 58 and 76 are all multiples of 19.
The correct answer is: B. False. 58 is not a multiple of 19.
2. Which of the following numbers is not a factor of 48: 1, 8, 12, 20, or 24?
The correct answer is: B. 20 is not a factor of 48.
3. The second cubed number is 8.
The correct answer is: A. True. 2 × 2 × 2 = 8.
4. The digit sums (the one digit answer you get when you add the digits together) of multiples of
3 are always 3
The correct answer is: B. False. The digit sum of multiples of 3 is either 3, 6 or 9.
5. One of the pairs of factors of 24 is 1 × 24, what are all the other pairs?
The correct answer is: C. 2 × 12, 3 × 8, 4 × 6 are the other pairs of factors of 24.
6. The next number in the sequence 4, 9, 19, is what?
The correct answer is: A. 39. You need to multiply the last number by 2 and add one.
7. The next number in the sequence 1, 3, 6, 10, is:
The correct answer is: C. 15 is the correct answer.
© BBC 2011
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Multiples and factors quiz
8. The third cubed number is:
The correct answer is: C. 27 is the correct answer.
9. 12 is a common factor of 20 and 36
The correct answer is: B. False. 12 is a factor of 36 but not of 20
10. 12 is a common factor of 48 and 56
The correct answer is: A. False. 12 is a factor of 48 but not of 56
© BBC 2011