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Year 7 Factors and Multiples
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The fifth multiple of 7 is
1 point
5
7
12
35
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The number of factors 48 has is
1 point
10
8
6
4
Clear selection
Which of the following is divisible by 2, 3 and 5?
1 point
36
60
75
42
Clear selection
The number 13☐ is divisible by 4. The value of ☐ is
1 point
1
2
3
4
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210 has
1 point
4 factors
8 factors
12 factors
16 factors
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The 6th multiple of 8 is
1 point
6
8
14
48
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The number factors that 24 has is
1 point
2
4
6
8
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The first 3 multiples of 9 are
1 point
1, 3, 9
3, 6, 9
9, 18, 27
9, 18, 21
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The first 3 multiples of 15 are
1 point
15, 30, 45
30, 45, 60
1, 15, 30
45
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A factor pair of 24 is
1 point
2, 4
4, 6
6, 2
2, 8
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A factor pair of 42 is
1 point
6, 7
20, 2
21, 1
16, 3
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Tony Tyler has 24 bathroom tiles left over. If he wants to use them all on the wall behind the kitchen sink which of the following arrangements would be suitable?
1 point
I and II
I, II and III
II, IV and V
II, III and V
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Find the LCM of the following numbers 1, 2, 3, 4
1 point
1
6
16
12
Clear selection
The highest common factor (HCF) of 16 and 24 is:
1 point
4
16
6
8
Clear selection
Which group of numbers contains every factor of 60?
1 point
2,3,4,5,10,12,15,60
2,3,4,5,10,12,15,20,30
1,2,3,4,5,10,12,15,20,30
1,2,3,4,5,6,10,12,15,20,30,60
Clear selection
A 'perfect number' is a number that is equal to the sum of all its factors except for itself. Six is a perfect number because 1 + 2 + 3 = 6. Which of the following is a perfect number?
1 point
20
24
26
28
Clear selection
How many multiples of 21 are there between 200 and 400
1 point
9
10
11
12
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The highest common factor (HCF) of 12, 28 and 32 is
1 point
1
4
2
7
Clear selection
The lowest common multiple (LCM) of 6 and 9 is
1 point
18
3
36
54
Clear selection
What is the HCF of 36 and 90?
1 point
6
18
36
180
Clear selection
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