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Sum

While measuring the length of a sharpened pencil, the reading of the scale at one end is 2.0 cm and at the other end is 12.1 cm. What is the length of the pencil?

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#### Solution

The difference between the two readings is the length of the pencil.

= 12.1 cm – 2.0 cm

= 10.1 cm or 10 cm and 1 mm.

Concept: Measurement of Length

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