The Four Operations

Apply addition, subtraction, multiplication, and division to integers, decimals, simple fractions (proper and improper), and mixed numbers.
Perform operations with both positive and negative numbers using formal written methods.
Understand and use place value when working with very large or very small numbers and decimal calculations.
Solve contextual problems involving household finance terms such as profit, loss, cost price, selling price, debit, credit, balance, income tax, VAT, and interest rates.

What you need to know