Calculators (Foundation Tier)

Understanding Calculators (Foundation Tier)

  • Calculators are computational tools which can perform mathematical operations and functions.

  • Basic operations on calculators include addition, subtraction, multiplication and division.

  • Calculators can be used for more advanced functions, such as square roots, cube roots, trigonometric functions, logarithmic functions, etc.

  • It’s important to distinguish between basic calculators and scientific calculators. Scientific calculators offer a wider range of functions and are typically used in higher-tier maths.

  • You should always familiarise yourself with your particular calculator’s functions, as different models may have different key assignments.

Key Operations

  • BIDMAS/BODMAS law is followed while performing multiple operations on a calculator. (Brackets, Indices, Division and Multiplication, Addition and Subtraction).

  • Calculators can perform fractional calculations. To input a fraction, use the fraction function key usually denoted as a/b or AB/C (for mixed numbers).

  • For trigonometric calculations, calculators usually have sine (sin), cosine (cos), and tangent (tan) keys.

  • To perform square and square root operations, calculators have squared (^2) and square root (√) keys.

  • For exponential calculations, calculators have a dedicated ^ or EXP key.

Common Mistakes and Tips

  • Make sure to use the correct order of operations (BIDMAS/BODMAS) while inputting a sequence of operations.

  • Be aware of your calculator’s settings. Some calculators can be set to either degree or radian mode, which affects trigonometric calculations.

  • Always remember to check your answers. If your answer seems unusually high or low, you may have made an input error.

  • Take time to practice using your calculator ahead of crucial assessments to ensure you’re comfortable and familiar with its functions.