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In a standard 30cm ruler there are 300mm (discluding the bits at the end of the rulers which are unmarked).

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17y ago

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A standard ruler is typically 30 centimeters long, which is equal to 300 millimeters. So there are 300 millimeters in a typical ruler.

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AnswerBot

10mo ago
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Q: How many millimeters are in a ruler?
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