★Measure With a Ruler
Grade 1 Math Worksheet
NameDate
Use the ruler. Write how long the bar is.
PencilGoGrade 1 · Math · Measurement
1st Grade Measure With a Ruler worksheets
6 printable versionsOn LevelAbout 4 minutes eachFree · no account
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About this worksheet
A ruler is a row of equal units with numbers on it, so measuring with one is counting units that are already marked. The child checks that the bar starts at 0 and reads the number where it ends. On this grade 1 worksheet each line shows a bar lined up against a ruler and your child writes how long it is. Odd-numbered versions of the sheet measure in inches and even-numbered versions in centimeters, so six versions give both.
Support sheets use whole numbers up to 9, and standard and challenge sheets go up to 12. Many first graders read the end of the ruler instead of the end of the bar, so point to the end of the bar and read the number under it.
What your child will learn
- Line up the start of an object with 0 on a ruler
- Read the number at the end of the object
- Measure in inches and in centimeters
- Say a length with its unit
Common Core standard: 2.MD.A.1
Worked example
The bar starts at 0 and ends at the 7 on the ruler. It is 7 inches long. Write 7.
Common mistake
Reading the number at the end of the ruler instead of the end of the bar, or starting to count at 1.
Helpful hint
Find where the bar ends and read the number under it.
Questions parents ask
What is the most common mistake with measure with a ruler?
Reading the number at the end of the ruler instead of the end of the bar, or starting to count at 1.
How can I help my child with measure with a ruler?
Find where the bar ends and read the number under it.
Are these 1st grade math worksheets free to print?
Yes. All 6 printable versions on this page are free to download and print, with no account needed.
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