Powers of 10 – Word Problems with Multiplying and Dividing

A factory makes 2.6 kilograms of chocolate each hour. How many kilograms of chocolate does it make in 100 hours?

• 26

• 260

• 2,600

• 26,000

A farmer collects 4.5 liters of milk each day. About how many liters will he collect in 1,000 days?

• 45

• 450

• 4,500

• 45,000

A car factory produces 750 cars each month. If the factory continues production for 100 months, how many cars will it make?

• 7,500

• 75,000

• 750,000

• 7,500,000

A string measures 8,200 millimeters long. If it is cut into 100 equal pieces, what is the length of each piece in millimeters?

• 8.2 mm

• 82 mm

A roll of ribbon is 4.2 meters long. If it is cut into 10 equal pieces, how long is each piece?

• 0.042 m

• 0.42 m

• 4.2 m

• 42 m

A student has $4.75. If she has 100 times as much money, how much will she have?

• $47.5

• $475

• $4,750

• $47,500

At the library, there are 2,500 books on one floor. If the library has 10 floors of the same size, how many total books are there in the library?

•  A. 250

•  B. 2,500

•  C. 25,000

•  D. 250,000

A scientist measures a piece of string and finds it is 0.007 kilometers long. How many meters long is the string? (1 km = 1,000 m)

•  A. 0.07 m

• B. 0.7 m

• C. 7 m

• D. 70 m

A water jug holds 6 liters. If one classroom has 100 jugs of the same size, how many milliliters of water do all the jugs hold together? (1 L = 1,000 mL)

•  A. 6,000 mL
  
  

• B. 60,000 mL

• C. 600,000 mL

• D. 6,000,000 mL

A ribbon measures 2.35 meters long. If this ribbon is cut into 100 equal pieces, how long is each piece?

•  A. 0.0235 m

• B. 0.235 m

• C. 2.35 m

• D. 23.5 m