Unit 2 - Properties of number and arithmetic procedures

2a - Adding and subtracting

2b - Multiplying with integers

2c - Dividing with integers

2.1 - Four operations with integers

2.2 - Comparing and ordering directed number

2.3 - Addition of directed number

2.4 - Subtraction of directed number

2.5 - Multiplication of directed number

2.6 - Multiplication with decimals

2.7 - Division with directed numbers

2.8 - Division with decimal and fractional remainders

2.9 - Division by a decimal

2.10 - Squares and square roots

2.11 - Cubes and cube roots

2.12 - Order of operations with four operations

2.13 - Order of operations with indices

2.14 - Factors, primes and prime factors

2.15 - Highest common factor (HCF)

2.16 - Lowest common multiple (LCM)