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21-10-2020
Mathematics

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A 30-cm ruler broke into two pieces. One piece was 120 mm long. How
long was the other piece? Express your answer in millimeters.

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lazyfroggo lazyfroggo

21-10-2020

Answer: 180 mm

Step-by-step explanation:

1 cm = 10 mm

10 cm = 100 mm

30 cm = 300 mm

300 - 120 = 180

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