Chapter 2.9 (Yläkoulun matematiikka 7)

Kokonaislukujen yhteenlasku

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Chapter topics:

  1. Kokonaislukujen yhteenlasku
  2. Positiivisen luvun lisääminen
  3. Negatiivisen luvun lisääminen
  4. Harjoittele
  5. Hyvä osata
  6. Ekstra

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