These 20 problems practice changing larger units into smaller units: kilometers to meters, kilograms to grams, liters to milliliters, pounds to ounces, and hours to minutes. The skills match Common Core 4.MD.A.1 and 4.MD.A.2.
The first problems are quick conversions. The last six are word problems about trails, milk, movies, backpacks, ribbon, and baking.
Grade 4 · Common Core State Standards: 4.MD.A.1, 4.MD.A.2
Exercise 1 – Kilometers to meters
Convert \(4\text{ km}\) to meters.
Exercise 2 – Meters to centimeters
Convert \(7\text{ m}\) to centimeters.
Exercise 3 – Kilograms to grams
Look at the blocks. Convert \(3\text{ kg}\) to grams.
Each block is 1 kg = 1,000 g.
Exercise 4 – Liters to milliliters
Convert \(5\text{ L}\) to milliliters.
Exercise 5 – Pounds to ounces
Convert \(2\text{ lb}\) to ounces.
Exercise 6 – Hours to minutes
Use the double number line to find how many minutes are in \(3\text{ hr}\).
Hours on top, minutes on the bottom.
Exercise 7 – Minutes to seconds
Convert \(5\text{ min}\) to seconds.
Exercise 8 – Mixed length
Write \(2\text{ m } 35\text{ cm}\) as centimeters.
Exercise 9 – Fill the conversion table
Complete the table.
Kilograms
Grams
1
?
2
?
6
?
8
?
Exercise 10 – Compare liquid volumes
Compare the two jars. Write <, >, or = in place of the question mark: \(2\text{ L} \; ? \; 2{,}500\text{ mL}\)
Jar A and Jar B drawn on the same scale.
Exercise 11 – Hours and minutes
Write \(3\text{ hr } 20\text{ min}\) as minutes.
Exercise 12 – Pounds and ounces
Write \(4\text{ lb } 6\text{ oz}\) as ounces.
Exercise 13 – Minutes and seconds
Write \(2\text{ min } 15\text{ sec}\) as seconds.
Exercise 14 – Which is longer?
Which is longer, \(3\text{ m } 5\text{ cm}\) or \(350\text{ cm}\)?
Exercise 15 – Trail walk
Ethan’s hiking trail is \(3\text{ km } 250\text{ m}\) long. He has walked \(1{,}800\text{ m}\). How many meters are left?
The whole trail is 3,250 m.
Exercise 16 – Milk bottle
Sofia has a \(2\text{ L}\) bottle of milk. She pours \(750\text{ mL}\) into pancake batter and \(450\text{ mL}\) into a smoothie. How many milliliters are left?
Exercise 17 – Movie time
Priya’s movie starts at the time on the clock (PM) and lasts \(2\text{ hr } 50\text{ min}\). What time does it end?
The clock shows 3:15.
Exercise 18 – Backpack weight
Diego’s backpack weighs \(3\text{ lb } 9\text{ oz}\). He adds a lunch that weighs \(12\text{ oz}\). Find the total weight in ounces. Then write it in pounds and ounces.
Exercise 19 – Ribbon cost
Ribbon costs $6 per meter. Noah buys \(250\text{ cm}\) of ribbon. How much does he pay?
Exercise 20 – Cookie baking
Jamal bakes cookies for \(1\text{ hr } 45\text{ min}\), lets them cool for \(25\text{ min}\), and decorates for \(50\text{ min}\). He starts at 9:30 AM. How many minutes does everything take, and what time does he finish?
Download PDFDownload the 4th Grade Measurement Units and Conversions Worksheet (PDF, 97 KB)
Multistep Word Problems Test with Point Values
