Multiplication Review- Whole #'s and Decimals

A student is asked to multiply 145 × 58 by completing each step of the model. Which numbers can the student use to complete each step of the model correctly?

• step 1: 1,160 step 2: 7,250 step 3: 8,410

• step 1: 1,160 step 2: 725 step 3: 1,885

• step 1: 203 step 2: 725 step 3: 928

• step 1: 1,160 step 2: 7,250 step 3: 8,310

The school's PTO buys 38 boxes of popsicles for Popsicle Friday. Each box contains 1,492 popsicles. How many popsicles does the PTO buy?

• 56,686

• 56,696

• 16,412

• 15,412

Study the number line.

Which equation is represented by the number line?

• 6 X 0.08 = 0.24

• 6 X 0.8 = 0.24

• 6 X 0.04 = 0.24

• 6 X 0.4 = 0.24

Amy multiplies 3,412 by 58. What steps should she take to multiply the number correctly?

• First, she should multiply 3,412 by 8. Then, she should multiply 3,412 by 5. She should add the two products to get her final answer.

• First, she should multiply 3,412 by 8. Then, she should multiply 3,412 by 50. She should multiply both products to get her final answer.

• First, she should multiply 3,412 by 8. Then, she should multiply 3,412 by 50. She should add both products to get her final answer.

• First, she should multiply 3,412 by 8. Then, she should multiply 3,412 by 5. She should multiply the two products to get her final answer.

What is the product of 4,829 × 47?

• 53,119

• 190,513

• 226,963

• 229,863

In which expression will the decimal point move 4 places to the right?

• 3.4 × 10²

• 3.4 ÷ 10²

• 3.4 X 10⁴

• 3.4 ÷ 10⁴

Which equation is correct?

• 7.3 × 10² = 730

• 7.3 x 10⁴ = 7, 300

• 7.3 × 10⁵ = 73,000

• 7.3 x 10⁷ = 7,300,000

How many zeros will be in the product of 40 × 10²?

• 1 zero

• 2 zeros

• 3 zeros

• 4 zeros

What is another way to write 73.8 ÷ 10⁴?

• 0.00738

• 0.0738

• 73, 800

• 738,000

Consider the area model of 452 × 19.

What is the product of 452 X 19, and why?

• 4, 520 because 4,000 + 3,600+ 500+ 450+20+ 18 = 4,520

• 4, 520 because 4,000 + 500 + 20 − 3, 600 + 450 + 18 = 4, 520

• 8, 588 because 4,000 + 3,600+ 500 + 450 + 20 + 18 = 8,588

• 8,588 because 4,000 + 500 + 20 − 3, 600 + 450 + 18 = 8,588