Zadanie 6.
Uzupełnij grafy.
9 +2 = (9+1)+ 1 = 10 +1 = 11 11 - 2 =(11-1) -1 = 10- 1 = 9
+2
9+3 =(9 + 1) + 2 = 10 + 2 = ...
12-3 =(12-2)-1 = 10 -1 = ...
+3
9 + 4 =(9 + 1) + 3 = 10 + 3 =...
13-4 =(13-3) -1 = 10-1 = ...
9 + 5 =(9 + 1) + 4 = ...
14-5 =(14_4). 1 = ...
98