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Converting Units of Length Metric, 3rd Grade Worksheet
Millimeters to centimeters, meters to kilometers, and every step in between. This converting units of length metric sheet gives your 3rd grader a reference chart and twenty problems to work through.
Labeled for 3rd grade, this homeschool worksheet opens with a reference box that lays out the metric length scale from millimeters through kilometers and lists the three key conversion facts. Section A presents ten whole-number conversions, moving between mm, cm, m, and km. Section B raises the difficulty with ten decimal and larger-number conversions, and a starred bonus question at the bottom asks how many millimeters are in one meter.
Converting units of length metric is a skill that pays off across science and math, and this sheet lets your student tackle it in two clear stages. Section A suits independent practice once your homeschooler has read the reference box, while Section B works well as a guided follow-up when decimals enter the picture. Completing both sections builds the habit of choosing the correct conversion factor rather than guessing the direction.
Twenty conversion problems across two sections make this converting units of length metric worksheet a solid 3rd grade math skill-builder.
Building Confidence with Converting Units of Length Metric
Usage Notes
A pencil is the right tool here since students will likely self-correct as they check conversion facts against the reference box. The two-section structure makes this well-suited to independent work for Section A followed by a short teacher check-in before moving to Section B.
Printing Tips
Portrait orientation is already set. A 24 lb paper stock keeps the answer lines crisp and prevents bleed-through if your student presses firmly. Printing two copies lets you use one as a practice run and one as an assessed sheet.