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- 1. Multiple Choice
Which of the following is a factor pair of 72?
12 and 7
36 and 36
9 and 8
6 and 6
- 2. Multiple Choice
1, 2, 3, 4, 6 and 12 are all ______ of 12.
Factors
Mutiples
Friends
Multiplication
- 3. Multiple Choice
All the factor pairs for the number 40 are listed below.
1 and 40
2 and 20
4 and 10
5 and 8
false
Not true
True
No idea
- 4. Multiple Choice
How many factor pairs are there for the number 28?
1
2
5
3
- 5. Multiple Choice
Which of the following numbers is prime?
2
21
17
9
- 6. Multiple Choice
Find the HCF of 15 and 6.
5
6
2
3
- 7. Multiple Choice
Four students each wrote down a number between 30 and 40. The list shows the numbers they wrote.
Elly- 35, Jody- 39, Maggie- 37, Palmer-33
Who wrote an even number?
Elly
Jody
Maggie
Vera
- 8. Multiple Choice
Brenda said that the number 2 is prime because it has only two factors. Carla said that the number 2 is only an even number and Jane said that 2 is both a prime and an even number. Who is correct?
Brenda
Carla
Jane
Ben
- 9. Multiple Choice
Which of the following are prime numbers?
3
6
9
4
- 10. Multiple Choice
2 × 5 × 7 is the prime factorization of a certain number. Find the number.
15
20
45
70
- 11. Multiple Choice
Express 2 whole number 3/5 as an improper fraction
13/5
45/3
15/5
14/5
- 12. Multiple Choice
Find the lowest common multiples of 3, 5 and 15.
3
5
20
15
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