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  1. The Sphere. Solids Inscribed in the Sphere

  2. Multiplication of natural numbers

  3. The order of operation performing with or without parentheses

  4. The Relative Positions of a Line Relative to a Plane

  5. Geometrical bodies

  6. The Relative Positions in Space of Two Lines

  7. Multiplication by 8 and 9

  8. Representation of Integer Numbers on the Axis

  9. Line definition. Plane definition.

  10. Naming, reading and writting numbers from 0-100