Finding Factor Pairs Quiz

What are the factor pairs of 12?

• (1, 12), (2, 6), (3, 4)

• (1, 12), (2, 3), (4, 6)

• (1, 6), (2, 12), (3, 4)

Answer explanation

The factor pairs of 12 are combinations of two numbers that multiply to 12. The correct pairs are (1, 12), (2, 6), and (3, 4), as they all satisfy the condition of multiplying to 12.

Tags

CCSS.4.OA.B.4

Which of the following is a factor pair of 18?

• (1, 18)

• (2, 9)

• (3, 5)

• (4,4.5)

Answer explanation

A factor pair of a number consists of two numbers that multiply to that number. For 18, (1, 18) and (2, 9) are correct pairs since 1x18=18 and 2x9=18. (3, 5) and (4, 4.5) do not multiply to 18.

Tags

CCSS.4.OA.B.4

Identify the factor pairs of 24.

• (1, 24), (2, 12), (3, 8), (4, 6)

• (1, 24), (2, 8), (3, 6), (4, 12)

• (1, 24), (2, 6), (3, 12), (4, 8)

Answer explanation

The factor pairs of 24 are combinations of two numbers that multiply to 24. The correct pairs are (1, 24), (2, 12), (3, 8), and (4, 6), which are all the unique pairs that satisfy this condition.

Tags

CCSS.4.OA.B.4

What are the factor pairs of 30?

• (1, 30), (2, 15), (3, 10), (5, 6)

• (1, 30), (2, 10), (3, 15), (5, 6)

• (1, 30), (2, 5), (3, 10), (6, 15)

Answer explanation

The factor pairs of 30 are combinations of two numbers that multiply to give 30. The correct pairs are (1, 30), (2, 15), (3, 10), and (5, 6), as they all satisfy this condition.

Tags

CCSS.4.OA.B.4

Which of the following is not a factor pair of 36?

• (1, 36)

• (2, 18)

• (3, 10)

Answer explanation

The factor pairs of 36 are combinations of two numbers that multiply to 36. (1, 36) and (2, 18) are valid pairs, but (3, 10) is not, as 3 x 10 equals 30, not 36.

Tags

CCSS.4.OA.B.4

Identify the factor pairs of 40.

• (1, 40), (2, 20), (4, 10), (5, 8)

• (1, 40), (2, 10), (4, 20), (5, 8)

• (1, 40), (2, 8), (4, 10), (5, 20)

Answer explanation

The correct factor pairs of 40 are (1, 40), (2, 20), (4, 10), and (5, 8). Each pair multiplies to give 40, confirming they are valid factors.

Tags

CCSS.4.OA.B.4

What are the factor pairs of 50?

• (1, 50), (2, 25), (5, 10)

• (1, 50), (2, 10), (5, 25)

• (1, 50), (2, 5), (10, 25)

Answer explanation

The factor pairs of 50 are combinations of two numbers that multiply to 50. The correct pairs are (1, 50), (2, 25), and (5, 10), which are all factors of 50. The other options contain incorrect pairs.

Tags

CCSS.4.OA.B.4

Which of the following is a factor pair of 60?

• (1, 60)

• (3, 20)

• (4, 12)

Answer explanation

A factor pair of a number consists of two numbers that multiply to that number. For 60, (4, 12) is correct because 4 x 12 = 60. The other pairs do not multiply to 60.

Tags

CCSS.4.OA.B.4

Identify the factor pairs of 72.

• (1, 72), (2, 36), (3, 24), (4, 18), (6, 12), (8, 9)

• (1, 72), (2, 18), (3, 24), (4, 36), (6, 12), (8, 9)

• (1, 72), (2, 36), (3, 18), (4, 24), (6, 12), (8, 9)

Answer explanation

The correct factor pairs of 72 are (1, 72), (2, 36), (3, 24), (4, 18), (6, 12), and (8, 9). Each pair multiplies to 72, confirming that the first answer choice is accurate.

Tags

CCSS.4.OA.B.4

What are the factor pairs of 90?

• (1, 90), (2, 45), (3, 30), (5, 18), (6, 15), (9, 10)

• (1, 90), (2, 30), (3, 45), (5, 18), (6, 15), (9, 10)

• (1, 90), (2, 45), (3, 18), (5, 30), (6, 15), (9, 10)

Answer explanation

The correct factor pairs of 90 are (1, 90), (2, 45), (3, 30), (5, 18), (6, 15), and (9, 10). Each pair multiplies to give 90, confirming that the first answer choice is accurate.

Tags

CCSS.4.OA.B.4