Math Unit 3 Part 1 Practice / Grade 4

Which list has all of the factor pairs of the number 36?

• 1 x 36, 2 x 18, 4 x 12, 6 x 6, 9 x 4

• 1 x 36, 2 x 16, 4 x 12, 6 x 6, 9 x 4

• 1 x 36, 2 x 16, 3 x 12, 6 x 6, 9 x 4

• 1 x 36, 2 x 18, 3 x 12, 6 x 6, 9 x 4

Which of the following numbers is a multiple of both 4 and 12?

• 6

• 12

• 24

• 38

Which shows all of the factors of 48?

• 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

• 1, 2, 3, 7, 9, 12, 16, 24, 48

• 1, 2, 4, 6, 9, 12, 16, 24, 48

• 1, 2, 3, 4, 8, 9, 12, 18, 24, 48

Which of the following numbers are prime? Pick three that are correct.

• 2

• 21

• 34

• 45

What is the mistake in this multiplication problem?

• They made a mistake because 20 times 30 is 600.

• They made a mistake because they did not account for a placeholder after (2 x 5)

• They made a mistake because only two numbers should be added together.

• They made a mistake because 6 times 3 is 18 not 21.

What is wrong with this problem?

• They did not put a placeholder in the ones spot when they multiplied 5 x 2.

• They did not put a placeholder in the hundreds spot when they multiplied 5 x 1.

• They did not add correctly.

• They did not put a placeholder in the one's spot when they multiplied 5 x 9.

Which expression is equal to 42 × 19?

• (40 × 2) × (10 × 9)

• (40 × 10) + (2 × 9)

• (40 + 2) × (10 + 9)

• (40 + 10) × (40 + 9) × (10 + 2) × (10 + 9)

What's the product of 2,364 x 4

• 9456

• 9465

• 9436

• 9428

Journey and Makyliah are making bracelets. Journey has made 12 bracelets, and Makyliah has made 3 times more bracelets than Journey. What equation should be used to find the number of bracelets Makylia has made?

• 12 + 3 = 15

• 12 x 3 = 36

• 12 - 3 = 9

• 12 + 4 = 16

Andrew sorted his blue cards from his red cards. He had 14 times as many blue cards as red cards. Andrew has 6 red cards. Which equation could represent the number of Andrew's blue cards (b)?

• 14 + 6 = b

• 14 × 6= b

• 6 × b = 14

• 14 + 6 = b