Mathematics for IGCSE & O level - Estimation (Section 1 - No. 42) | ExamPlay

Mathematics for IGCSE & O level - Estimation (Section 1 - No. 42)

In the number 0.0509, which digit is the first significant figure?

0

5

0 (second digit)

9

Giải thích

The first significant digit is the first non-zero digit.

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