Measuring in mm and cm
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Measuring in mm and cm
Measuring in mm and cm worksheet for Grade 4: two things on a ruler marked in mm, each measured in cm and then in mm, four changes between mm, cm, and m, and a length in mm to compare with one in cm. With an answer key.
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- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Goes with
- Converting Metric Units
- Printing
- Black and white
- Related curriculum
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Know how big units are compared with each other (1 km = 1,000 m, 1 lb = 16 oz, 1 hr = 60 min), fill in conversion tables, convert between larger and smaller units in one system, and solve problems with measurements.
Reviewed by Mrs. Catherine Reynolds, Teacher. How we check worksheets
How to use this sheet
- Have the child write the conversion fact at the top of each problem, such as 1 foot = 12 inches.
- Ask whether the number should get bigger or smaller: smaller units mean a bigger number.
- Use the conversion tables on the sheet as a reference for the first problems.
Common mistakes
- Dividing when they should multiply. Going to a smaller unit makes the number bigger.
- Using a metric rule, multiplying by 10, for customary units such as feet and inches.
- Treating time like decimals, so 1 hour 30 minutes becomes 1.30 hours. It is 1.5 hours.
