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1Scrie scăderile repetate ca împărţiri.
a. 15-5-5-5=0
b. 24-6-6-6-6= 0
12-4-4-4=0
32-8-8-8-8=0
27-9-9-9=0
16-4-4-4-4 = 0
c. 30-5-5-5-5-5-5 = 0
42-7-7-7-7-7-7=0
54-9-9-9-9-9-9=0​