2. Completează după model.
a) 4 + 4 + 4 + 4 + 4 + 4 + 4 = 7 * 4 = 28
8 + 8 + 8 =.... =....
6+6+6+6+6+6=....=....
b) 5-1-1-1-1-1=05:1= 5
6 - 3-3=0-.....

72-9-9-9-9-9-9-9-9=0->
2 + 2 + 2 +2=
42-7-7-7-7-7-7=0​