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Basic Units Worksheets

Free printable basic units worksheets with step-by-step answer keys. Every worksheet is uniquely generated so students never see the same problems twice. Topics covered range from choose correct unit for small familiar objects at the easy level through to decimal conversion between metric units at the advanced level.

CCSS.2.MDCCSS.3.MDKP.MAT.3

Difficulty Levels

Beginner

Concepts
Choose correct unit for small familiar objects
Number Range
cm, g, mL
Steps
1 step
Example
What unit to measure a pencil?

Easy

Concepts
Choose correct unit for larger objects
Number Range
m, km, kg, L
Steps
1 step
Example
What unit to measure a swimming pool length?

Medium

Concepts
Whole-number conversion between metric units
Number Range
1–10, multiply by factor
Steps
2–3 steps
Example
Convert 3 kg to g

Hard

Concepts
Decimal conversion between metric units
Number Range
1.25–9.75, split into parts
Steps
3–4 steps
Example
Convert 2.5 L to mL

Grade Availability

Basic Units worksheets are available for Grades 2–3. Problems are automatically adjusted to match grade-level expectations in number range, complexity, and notation.

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Learn the theory β†’ Read our basic units guide with worked examples.

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