Maths · OCR Paper 1
Calculator Skills
The calculator skills tested on OCR Paper 1: brackets, powers and roots, standard form, compound interest and trigonometry, and checking your calculator before the exam.
Lessons
Ticks are remembered on this device only.
Key terms in this chapter
All 9, gathered from every lesson.
- Calculator mode
- The setting that decides how the calculator works, such as degrees.
- Brackets
- Symbols that show which part of a calculation is worked out first.
- Standard form
- A way to write numbers as \(a \times 10^n\) with \(1 \le a < 10\).
- Inverse function
- A function that reverses another, such as \(\tan^{-1}\).
- Significant figures
- The digits of a number that carry meaning, counted from the first non-zero digit.
- Decimal places
- The digits after the decimal point.
- Compound interest
- Interest that is added to the amount, so that it also earns interest.
- Estimate
- An approximate answer, found by rounding.
- Display
- The screen of the calculator.