KAPEC GEOTASK?
  • The learning process is entertaining and exciting
  • The solved tasks turn into coordinates
  • The chance to follow your progress
  • Along with your schoolmates and friends, go on an adventure, searching for hideouts
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2600.3. Combinatorics

Write the correct answer!

How many three-digit positive even numbers there may be that ar less than 170? For calculations let's use combinatorics!
How many different first numbers (hundreds) there may be that will correspond to the task conditions?
How many different second numbers (tens) there may be that will correspond to the task conditions?
Write these numbers ascending! (Write one after another, with no spaces separating them with ; for example: ∎;∎;∎;∎;∎)
How many different third numbers (ones) there may be that will correspond to this conditions?
How many three-digit positive even numbers can you make so they are less than 150?
Grade:
9
Subject
Algebra
Theme
Combinatorics, probability theory elements
Subtheme
Combinatorics

Solve tasks to find hidden Geo point coordinates

  1. Physics: Electromagnetic waves in nature
  2. Algebra: Function concept recess: Function root; growth-decrease; biggest-smallest value; value interval.
  3. Algebra: Quadratic function y = ax² + bx + c concept
  4. Algebra: Arithmetic progression
  5. Algebra: Equivalence
  6. Algebra: Numerical chain concept
  7. Geometry: peak, edge, face, prism (straight and regular) pyramid (also regular), cylinder, cone, sphere.
  8. Algebra: Quotient
  9. Algebra: Variation, combination
  10. Algebra: Quadratic function y = ax² + bx + c concept
  11. Algebra: Function concept recess: growth-decrease; biggest-smallest value;value interval.
  12. Algebra: Probability
  13. Physics: Electrical circuit characteristics and Ohms law in circuit.
  14. Algebra: Interval methodes in inequalities
  15. Algebra: Quadratic function y = ax² + bx + c concept
  16. Physics: Elements in suns system.
  17. Algebra: Function concept recess: growth-decrease; biggest-smallest value;value interval.
  18. Geometry: peak, edge, face, prism (straight and regular) pyramid (also regular), cylinder, cone, sphere.
  19. Geometry: Regular polygon, perimeter and area. Regular polygon indrawn circle, regular polygon indrawn in a circle.
  20. Algebra: Interval methodes in inequalities
  21. Algebra: Difference
  22. Chemistry: Metal chemical properties.
  23. Geometry: Triangle, parallelogram, diamond area formulas, through narrow angle sine value.
  24. Algebra: Fraction inequalities
  25. Algebra: Difference
  26. Algebra: Combinatorics
  27. Geometry:
  28. Physics: The development of transport
  29. Chemistry: Calculations by chemical reactions.
  30. Geometry: peak, edge, face, prism (straight and regular) pyramid (also regular), cylinder, cone, sphere.
  31. Algebra: Variation, combination
  32. Algebra: Variation, combination
  33. Algebra: Equation with two unknowns (either 1 or 2 degree)
  34. Algebra: Difference
  35. Geometry: Triangle similarity signs.
  36. Chemistry: Obtaining metal from oxides. With chemical reaction equations.
  37. Chemistry: Hydrocarbon combustion. Calculations with chemical reaction equations.
  38. Algebra: Inequality systems
  39. Chemistry: Organic substance transformation.
  40. Algebra: Combinatorics
  41. Physics: Energy usage in everyday life
  42. Physics: Electrosafety.