Pane tähele
![](https://astrablobs.blob.core.windows.net/kitcontent/8cace6ac-c151-4ba5-9344-fc3a00481120/c42a2c93-8525-4f52-8997-3387ebe8da50/0103912a-cf5c-4d64-a96c-a374da84d72c_l.png)
3 kümnelist + 2 kümnelist = 5 kümnelist
30 + 20 = 50
![](https://astrablobs.blob.core.windows.net/kitcontent/8cace6ac-c151-4ba5-9344-fc3a00481120/7d80cf98-b242-4159-89ff-3b940d125684/878ddc0c-ef6f-45ac-a573-a999182780da_l.png)
4 kümnelist – 2 kümnelist = 2 kümnelist
40 – 20 = 20
19. Sobita õunad korvidesse.
Vihje
![](https://astrablobs.blob.core.windows.net/kitcontent/8cace6ac-c151-4ba5-9344-fc3a00481120/246eaf4d-0f13-45fd-9e01-da9829eca96c/6efb53b7-7b77-4a81-af2f-b70aad3ba3e7_m.png)
![](https://astrablobs.blob.core.windows.net/kitcontent/8cace6ac-c151-4ba5-9344-fc3a00481120/246eaf4d-0f13-45fd-9e01-da9829eca96c/6efb53b7-7b77-4a81-af2f-b70aad3ba3e7_m.png)
![](https://astrablobs.blob.core.windows.net/kitcontent/8cace6ac-c151-4ba5-9344-fc3a00481120/246eaf4d-0f13-45fd-9e01-da9829eca96c/6efb53b7-7b77-4a81-af2f-b70aad3ba3e7_m.png)
- 30 + 20
- 30 + 40
- 80 – 50
- 60 – 10
- 10 + 20
- 100 – 30
20. Arvuta.
30 + 20 =
50 + 40 =
10 + 90 =
80 + 10 =
50 + 50 =
90 – 20 =
30 + 60 =
80 – 40 =
60 – 30 =
80 – 80 =
70 – 60 =
40 – 20 =