# Location: **N° ` .", E° ` ."**

To define the coordinates of this point, you have to solve the tasks, that are hidden under the question marks.

Suitable for: Grade 8th

- Chemical reaction equation.
- Proportions, percent
- Fraction amplification and abbreviation.
- Albraic fraction.
- Quadratic equation
- Atoms un ķīmiskie elementi.
- Acids, bases and salts chemical formulas and names.
- Heat process in life.
- ax² + c = 0
- Fraction amplification and abbreviation.
- spread of sound.
- Curve angle value, center angle and indrawn angle.
- Incomplete quadratic equations
- Air composition and usage(reactions).
- Substance oxidation process and reactions.
- Chemical reaction equation.
- Optical phenomena in nature.
- Different size units.
- Area of a figure, measurement, main properties, same sized figures.
- Lighting and safety.
- Light break and lens.
- Substances structure.
- Incomplete quadratic equations
- Formula y = k/x
- Neutralisation reactions and calculations.
- Rational numbers.
- Square root
- Rational numbers.
- Rectangular, properties and signs.
- Light spectre and colour formation.
- Square root properties
- Trapeze, elements, trapeze types, trapeze properties, isosceles trapeze signs.
- Absolute and relative mistake of approximation.
- Light spectre and colour formation.
- Spread of Heat.
- Chemical element oxidation degree. Binary compound formula and name.
- Fraction multiplication and division.
- Rational expression.
- Square root extraction
- Arithmetic square root
- Quadratic equation discriminant
- Absolute and relative mistake of approximation