**ASPECTS OF NUMERACY FOCUS AREA 1**

**APPLYING ADDITION, SUBTRACTION, MULTIPLICATION AND DIVISION**

early in STAGE 4

- Interprets and comprehends complex problems involving addition and subtraction in unfamiliar contexts involving numbers of any size
- Understands whole numbers as the products of primes, e.g. 12 = 2 x 3 x 2
- Calculates square roots and cube roots
- Uses integers to solve problems and checks reasonableness of solutions

end of STAGE 4

- Uses concepts of addition and subtraction in relation to variables
- Uses zero and positive indices Understands irrational numbers
- Combines strategies to solve problems involving rational numbers and integers
- Calculates with very small and large numbers, including those in scientific notation
- Solves complex problems by estimating and calculating using efficient strategies