Math lesson

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12345678910
Across
  1. 3. The result of multiplication.
  2. 4. The ----- numbers starts with zero.
  3. 7. The result of subtraction.
  4. 9. A number which written in form 6•10^9 is called ---------- notation.
  5. 10. The ------- numbers starts with one.
Down
  1. 1. A geometric figure which has only tree sides.
  2. 2. The part or parts of whole thing is called --------.
  3. 5. The number zero on number line is called ------.
  4. 6. The result of division.
  5. 7. The number which written in a.b is called -------.
  6. 8. The name of our school.
  7. 9. The result of addition.