Measurement Math: Adding and Subtracting Lengths
Grade 3 science worksheet focusing on adding and subtracting measurements of length using various units.
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Measurement Math: Adding and Subtracting Lengths
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Read each question carefully and solve the problems by adding or subtracting the given lengths. Remember to include the correct unit of measurement in your answer.
1. Sarah has a ribbon that is 15 centimeters long. Her friend gives her another ribbon that is 12 centimeters long. How long are the ribbons together?
2. A pencil is 18 cm long. If you add another 5 cm piece to it, what is the total length?
3. A jump rope is 25 feet long. If 7 feet are cut off, how long is the jump rope now?
4. Mark's toy car is 20 inches long. His sister's toy car is 13 inches long. How much longer is Mark's toy car?
5. If you have a string that is 30 meters long and you cut off 10 meters, you will have meters left.
6. Two books are stacked. One is 4 cm thick and the other is 6 cm thick. The total thickness of the stack is cm.
7. Adding 5 cm to 10 cm gives a total of 15 cm.
True
False
8. If a table is 8 feet long and you remove 2 feet, the table will be 5 feet long.
True
False
9. A snake is 40 inches long. It grows another 10 inches. How long is the snake now?
30 inches
40 inches
50 inches
60 inches
10. Look at the image of measuring tools. Which of these tools would you use to measure the length of a classroom wall?