Number:

The Number topic is one of the fundamental areas of O-Level Mathematics. It develops students’ understanding of different types of numbers, calculations, percentages, ratios, standard form, estimation, and financial mathematics. Mastering this topic is essential for success in algebra, geometry, and problem-solving questions.

Topics Covered:

1.1 Types of Number

1.2 Sets

1.3 Powers and Roots

1.4 Fractions, Decimals, and Percentages

1.5 Ordering

1.6 The Four Operations

1.7 Indices

1.8 Standard Form

1.9 Estimation

1.10 Limits of Accuracy

1.11 Ratio and Proportion

1.12 Rates

1.13 Percentages

1.14 Using a Calculator