Chapter 4

Ganesh is making a scale model of the Space Needle in Seattle, Washington. The space needle is 605 feet tall. If the model is 1/100 the actual size of the Space Needle, how tall is the model?

• 6 ft

• 6.5 ft

• 6.05 ft

• 65 ft

Choose Yes or No to indicate whether the product is correct.

0.48 × 10 = 4.8

• yes

• no

Choose Yes or No to indicate whether the product is correct.

0.76 × 10 = 76

• yes

• no

Choose Yes or No to indicate whether the product is correct.

0.01 × 100 = 0.1

• yes

• no

Choose Yes or No to indicate whether the product is correct.

0.50 × 1,000 = 500

• yes

• no

Madison is in charge of buying the hamburger meat for her company’s annual picnic. She needs to buy enough meat to make 1,000 hamburgers. Each hamburger will weigh 0.25 pound. How many pounds of hamburger meat does Madison need to buy?

• 25

• 250

• 2,500

• 25,000

Rhianna is making a shelf to store her collection of rocks and shells. She is using 5 pieces of wood that are each 3.25 feet long. How much wood will Rhianna use to make the shelf?

• 18.4 ft

• 20.1 ft

• 16.25 ft

• 17.7 ft

Which problems will have two decimal places in the product? Mark all that apply.

• 3 × 0.65

• 4.8 × 2

• 8.1 × 10

• 6.1 × 7.3

• 7.22 × 10^0

Mari and Rob are making a poster for the science fair. They need to figure out how much a rock that weighs 7 pounds on Earth would weigh on Mars. They know that they can multiply the amount the rock weighs on Earth by 0.38 to find its weight on Mars. Circle the partial products Mari and Rob would need to add to find the product of 7 and 0.38. Mark all that apply.

• 0.7

• 0.56

• 2.66

• 2.1

• 0.38

Michael exchanged 1,000 U.S. dollars for the Croatian currency, which is called the Kuna. The exchange rate was 5.81 Kuna to $1.

How many Croatian Kuna did Michael get?

• 5,810 kuna

• 6,200 kuna

• 5,750 kuna

• 3,456 kuna