Grade 4 Unit 2 Test: Multiplication Strategies

Grayson and Connor are helping set up chairs for an event. They need to arrange 30 rows with 60 chairs in each row. Use factoring tens to evaluate how many chairs they need in total. Which expression correctly shows the steps?

• (3 × 10) × (6 × 10) = (3 × 6) × 100 = 1,800

• (30 × 6) × (1 × 10) = 180 × 10 = 18,000

• (3 × 60) × (10 × 1) = 180 × 10 = 1,800

• (30 × 60) = (30 + 60) × 10 = 900

Milena and Gia are organizing gift bags for a school event. Each bag contains 42 candies, and they need to prepare 68 bags. Which expression is equivalent to 42 × 68 using the distributive property?

• 40 × 2 + 60 × 8

• (40 × 60) + (40 × 8) + (2 × 60) + (2 × 8)

• 32 + 24 + 12 + 16

• (42 × 60) + (68 × 2)

Noah and Elliott are organizing an event and have 70 cartons, each holding 18 eggs. How many eggs do they have in all?

• 1,260

• 1,080

• 1,2600

• 126

Maverick bought 12 bags of large buttons with 15 in each bag and Dylan bought 17 bags of small buttons with 30 in each bag. How many more small buttons are there than large buttons?

• 510 more

• 390 more

• 30 more

• 180 more

Marvin is helping his school organize 543 books into 8 boxes. Which area model correctly represents how Marvin can calculate the total number of books using place-value parts?

• (8 × 500) + (8 × 40) + (8 × 3)

• (8 × 54) + (8 × 3) + 500

• (8 × 540) + (8 × 30) + 3

• (500 + 40 + 3) × (5 + 3)

Mila is organizing gift bags for a party. She needs to pack 6 bags with 7 candies each, 6 bags with 700 candies each, and 60 bags with 70 candies each. Which set of answers is correct for the total number of candies in each case?

• 42, 4,200, 4,200

• 42, 420, 4,200

• 48, 4,200, 420

• 42, 4,900, 4,900

Riley bought 3 packs of pencils, and each pack contains 67 pencils. How many pencils did Riley buy in total?

• 171

• 180

• 210

• 201

Max and Henry are helping to set up chairs for an event. They need to arrange 19 rows with 43 chairs in each row. Estimate the total number of chairs by rounding each number to the nearest ten. Which estimate is correct?

• 20 × 40 = 800

• 20 × 50 = 1,000

• 10 × 40 = 400

• 20 × 30 = 600

Thomas and Ava's school sells raffle tickets for $5 each. If 324 tickets are sold, which estimate best shows how much money will be raised? Round to make the multiplication easier, then choose the best estimate.

• $1,500

• $1,600

• $1,700

• $2,000

Each band member, including Noah, Thomas, Grayson, Matthew, and AJ, practices for 4 hours each week. There are 215 boys and 207 girls in the band. About how many total hours of practice is that? Choose the best estimate.

• 1,600 hours

• 1,700 hours

• 1,800 hours

• 2,000 hours