GMAS 6th Grade Mathematics Practice Test

Convert 4 centimeters to millimeters.

4 400 40 14

Correct Answer:

Explanation:

When converting from centimeters to millimeters, remember that 1 centimeter equals 10 millimeters. So, multiply the number of centimeters by 10. For 4 centimeters, 4 × 10 = 40 millimeters. The other numbers don’t fit the conversion: 4 would be the measurement in centimeters, not millimeters; 400 would come from multiplying by 100, which isn’t the conversion factor here; 14 isn’t related to the conversion at all.

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