Math Quiz

Which of the following statements is TRUE?

• A. 36 is not a multiple of 6.

• B. A factor of 24 is 8 because 8 × 3 = 24.

• C. 45 is not a multiple of any of its factors.

• D. 12 is a factor of 5 because 5 × 2 = 12.

Which of the following best explains why 1 is not considered a prime number?

• A. Because 1 has more than two factors.

• B. Because 1 is a composite number.

• C. Because 1 is an even number.

• D. Because a prime number must have exactly two distinct factors - 1 and itself.

Sonam says, "12 is a factor of 84, and 84 is a multiple of 12." Kinley says, "84 is not a multiple of 12 because 12 is smaller than 84." Who is correct, and why?

• A. Only Sonam is correct, because 84 ÷ 12 = 7 with no remainder.

• B. Only Kinley is correct, because a number must be larger to be a multiple.

• C. Both are correct, because 12 and 84 are related.

• D. Neither is correct, because 12 cannot be a factor of a 2-digit number like 84.

A rectangular prism has a length of 5 cm, a width of 3 cm, and a height of 4 cm. If the height is doubled, what will be the new volume of the prism?

• A. 30 cm³

• B. 60 cm³

• C. 120 cm³

• D. 240 cm³

Which of the following correctly shows the number 407,215 in expanded form and words?

• 400,000 + 7,000 + 200 + 10 + 5 — Four hundred seventy-two thousand, one hundred five
  
  

• 40,000 + 700 + 200 + 10 + 5 — Forty-seven thousand, two hundred fifteen
  
  

• 400,000 + 7,000 + 200 + 10 + 5 — Four hundred seven thousand, two hundred fifteen

• 400,000 + 70,000 + 2,000 + 100 + 50 — Four hundred seventy-two thousand, one hundred fifty