CAIE: O Level - Mathematics D 4024 - Paper 2

Numbers / Estimation and Approximation

KEYPOINTS:

All non-zero digits are significant.
All zero (zeros) between non-zero digits is (are) significant. e.g. 205 (3 sf), 2.05 (3 sf)
In whole numbers, zeros after the last non-zero digit are not significant. e.g. 500 (1 sf), 1300 (2 sf)
In decimals, zeros before the first non-zero digit are not significant. e.g. 0.059 (2 sf)
In decimals, zeros after the last non-zero digits are significant. e.g. 2.30 (3 sf)

KNOWLEDGE REQUIRED:

Significant figures, decimal places and rounding off numbers

Past Papers Topic Wise Questions O Level: Mathematics D 4024 - Paper 2 Numbers | Estimation and Approximation

1

Marking Scheme

The questions available on this website are the sole intellectual property of cambridgeinternational.org Our role is to curate these questions into organized topics, with the intention of benefiting students.