Mathematics for IGCSE & O level - Estimation (Section 3 - No. 24) | ExamPlay

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Mathematics for IGCSE & O level - Estimation (Section 3 - No. 24)

What is the approximate value of 19.89 to 1 significant figure?

10

19

20

20.0

Wyjaśnienie

19.89, when rounding to 1 s.f., the 9 rounds to 20.

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