Secondary 1, Mathematics Worksheet 4: Factors and Multiples – no ans, TBC
Secondary 1, Mathematics Worksheet 4: Factors and Multiples – no ans, TBC
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Question 1 of 18
1. Question
1 point(s)Write down all the factors of the following numbers:
(a)10(b)21
(c)121
(d)250

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Question 2 of 18
2. Question
1 point(s)Write down the first four multiples of the following numbers:
(a) 4(b) 8
(c)12
(d)22

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Question 3 of 18
3. Question
1 point(s)Determine whether 1068 is a multiple of 12.

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Question 4 of 18
4. Question
1 point(s)Find the second multiple of the smallest prime factor of 570.

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Question 5 of 18
5. Question
1 point(s)Find the difference between the largest multiple of 18 less than 1000 and the largest 2 digit multiple of 18.

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Question 6 of 18
6. Question
1 point(s)Determine whether the following numbers are prime numbers:
(a) 107(b) 331
(c) 981

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Question 7 of 18
7. Question
1 point(s)Determine whether the following numbers are prime numbers:
(a) 289
(b) 900
(c) 5625

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Question 8 of 18
8. Question
1 point(s)Do the prime factorization of the following numbers and write your answer in the index notation.
(a) 190
(b) 484
(c) 3136
(d) 7200
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Question 9 of 18
9. Question
1 point(s)9. Express each of the following as sum of only prime numbers.
(a) 59
(b) 572
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Question 10 of 18
10. Question
1 point(s)Find the H.C.F of each pair of numbers:
(a) 4 and 24
(b) 9 and 27
(c) 420 and 560
(d) 350 and 875
(e) 444 and 920

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Question 11 of 18
11. Question
1 point(s)The H.C.F of two numbers is 12 and the difference between the numbers is also 12. Find two such numbers.

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Question 12 of 18
12. Question
1 point(s)Find two numbers such that their H.C.F is 20 and they differ by twice their H.C.F.

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Question 13 of 18
13. Question
1 point(s)Find the LCM of each pair of numbers
(a) 15 and 18
(b) 35 and 55
(c) 81 and 105
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Question 14 of 18
14. Question
1 point(s)Find the LCM of each group of numbers:
(a) 9, 16, 25
(b) 30, 45 and 90
(c) 24, 36 and 480

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Question 15 of 18
15. Question
1 point(s)The HCF of two numbers is 6. The LCM of those two numbers is 180. What are the possible numbers?

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Question 16 of 18
16. Question
1 point(s)The L.C.M of a pair of numbers is 90.
(a) Find the L.C.M of this pair of numbers and 50.
(b) The number of pieces of cloth used to form the quilt.
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Question 17 of 18
17. Question
1 point(s)17. Prime factorise to find the square root of the following:
(a) square root 196
(b) square root 1764
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Question 18 of 18
18. Question
1 point(s)It is given that 8 is a factor of 7 36 where the represents a missing digit.
Find all possible values that can take the place of the missing digit.
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