Ülesanded 12–21
6 | 7 | 9 | 13 | 14 |
I | O | M | P | L |
Vastus | Täht | |
12 + 2 = |
|
|
19 – 13 = |
|
|
10 – 1 = |
|
|
11 + 2 = |
|
|
18 – 11 = |
|
|
15 – 2 = |
|
|
19 – 12 = |
|
|

Arvud | Summa | Vahe |
12 ja 4 |
|
|
14 ja 5 |
|
|
11 ja 8 |
|
|
13 ja 6 |
|
|
A | 18 – 9 = 9 |
B | 17 – 7 = |
C | 13 – 4 = |
D | 12 – 6 = |
E | 11 – 4 = |
F | 15 – 9 = |
G | 20 – 13 = |
H | 15 – 7 = |
I | 14 – 7 = |
J | 18 – 12 = |
K | 19 – 12 = |
L | 14 – 8 = |
M | 12 – 3 = |
N | 20 – 10 = |
O | 15 – 6 = |


Vastus. Ööpäeva jooksul valvas kindlust valvurit.