Key learning points

1. Some calculators can perform more than just basic calculations.
2. The fx-991CW can convert between different formats for values.
3. The fx-991CW can solve equations numerically.

Keywords

• Prime factor - Prime factors are the factors of a number that are, themselves, prime.

• Equation - An equation is used to show 2 expressions that are equal to each other.

• Simultaneous equations - Equations which represent different relationships between the same variables are called simultaneous equations.

• Inequality - An inequality is used to show that one expression may not be equal to another.

Common misconception