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Math Unit 1 Test - Skyndipróf
  • 1. Is 24 an even or an odd number?
A) Even
B) Odd
  • 2. Which of the following is an odd number?
A) 126
B) 4
C) 13
D) 12
  • 3. The factors of 24 are...
A) 1, 2, 3, 4, 6, 8, 12, 24
B) 1, 2, 3, 4, 5, 6, 10, 12, 24
C) 2, 4, 6, 8, 10, 12, 14, 24
D) 1, 2, 3, 4, 5, 6, 10, 12, 24
  • 4. Which of the following numbers is NOT a prime number?
A) 4
B) 5
C) 3
D) 2
  • 5. The prime factorization of 24 is...
A) 2 * 2 * 2 * 3
B) 2 * 2 * 6
C) 2 * 12
D) 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2
  • 6. 72 =
A) 14
B) 9
C) 49
D) 72
  • 7. 92 =
A) 11
B) 18
C) 92
D) 81
  • 8. 62 =
A) 62
B) 8
C) 12
D) 36
  • 9. 52 =
A) 25
B) 52
C) 10
D) 7
  • 10. 102 =
A) 12
B) 100
C) 102
D) 20
  • 11. 82 =
A) 16
B) 88
C) 8 + 8
D) 8 * 8
  • 12. Which number is a composite number?
A) 5
B) 25
C) 31
D) 13
  • 13. A prime number always...
A) has only two factors
B) is a square number
C) is divisible by 3
D) is an odd number
  • 14. Which of the following statements is true about even numbers?
A) they are never prime numbers
B) they can never be divisible by 3
C) they are always square numbers
D) they always have the number 2 as a factor
  • 15. The number 1 is...
A) Composite
B) Neither Prime nor Composite
C) Prime
D) Both Prime and Composite
  • 16. One of the factors of 22 is...
A) 4
B) 11
C) 3
D) 12
  • 17. How many factors does the number 23 have?
A) 6
B) 8
C) 2
D) 4
  • 18. How many factors does the number 9 have?
A) 3
B) 2
C) 4
D) 5
  • 19. A composite number always...
A) is a square number
B) has more than two factors
C) is an even number
D) is not divisible by 3
  • 20. Which number is NOT a factor of 26?
A) 3
B) 13
C) 1
D) 2
Nemendur sem tóku þetta próf tóku einnig :
Math Chapter 2 Test
FOIL
Place value
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