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Convert to the same units then the subtraction can be done:

The centi- prefix means one hundredth (1/100)

→ 1 cm = 1/100 m

→ 12 cm = 12 × 1/100 m = 0.12 m

→ 1.2 m - 12 cm = 1.2 m - 0.12 m = 1.08 m

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8y ago

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