Sec. 1 Math

1.1. Primes and prime factorisation 2 Quizzes

1.2. Finding highest common factor (HCF) and lowest common multiple (LCM), squares, cubes, square roots and cube roots by prime factorisation 3 Quizzes

1.3. Negative numbers, integers, rational numbers, real numbers and their four operations 2 Quizzes

1.4. Calculations with calculator 3 Quizzes

1.6. Use of , ≤, ≥ 1 Quiz

1.7. Approximation and estimation (including rounding off numbers to a required number of decimal places or significant figures, and estimating the results of computation) 2 Quizzes

2.1. Comparison between two or more quantities by ratio (NA) 1 Quiz

2.2. Relationship between ratio and fraction (NA) 2 Quizzes

2.3. Dividing a quantity in a given ratio (NA) 2 Quizzes

2.4. Ratios involving rational numbers 1 Quiz

2.5. Equivalent ratios (NA) 2 Quizzes

2.6. Writing a ratio in its simplest form 2 Quizzes

2.7. Problems involving ratio 1 Quiz

3.1. Expressing one quantity as a percentage of another (NA) 2 Quizzes

3.2. Comparing two quantities by percentage 2 Quizzes

3.3. Percentages greater than 100% 2 Quizzes

3.4. Increasing/decreasing a quantity by a given percentage (including concept of percentage point) 2 Quizzes

3.5. Finding percentage increase/decrease (NA) 2 Quizzes

3.6. Reverse percentages 2 Quizzes