Convert 3 centimeters to millimeters.

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Study for the GMAS 6th Grade Mathematics Test. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Convert 3 centimeters to millimeters.

Explanation:
Think of centimeter and millimeter as two sizes on the same ruler. There are 10 millimeters in every centimeter, so to convert centimeters to millimeters you multiply by 10. For 3 centimeters, 3 × 10 equals 30 millimeters, so the measurement is 30 mm. (A quick check: 1 cm = 10 mm, so 3 cm = 30 mm.)

Think of centimeter and millimeter as two sizes on the same ruler. There are 10 millimeters in every centimeter, so to convert centimeters to millimeters you multiply by 10. For 3 centimeters, 3 × 10 equals 30 millimeters, so the measurement is 30 mm. (A quick check: 1 cm = 10 mm, so 3 cm = 30 mm.)

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