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scrie a sau f in casete 14:2=14-2-2-2-2-2-2-2;b)28÷7=28-7-7-7;c)25:5=25-5-5-5-5;d)32:8=32-8-8-8-8;e)21-7-7-7=21:3;f)24-8-8=16:2;g)20-5-5-5=30:6;h)18-6-6=18:3.