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Session 2: Units of measure

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There are four numbered intervals on the scale going from 0–15. There are nine markers between each numbered interval. ‘(a)’ has an arrow that points to the second marker after ‘0’. ‘(b)’ has an arrow that points to the fifth marker after ‘5’. ‘(c)’ has an arrow that points to the third marker after ‘10’.

 5.2 Scales and measuring instruments