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1.Calculează: a) 321:3= b) 450:5= 707:7= 212:2= 438 : 3 = 486:6= 516:4= 819:7= © ch3 249:3= 1354:2= 5 430:5= 1992:8 = d) 4896:8= 2275:7= 1206:9= 1071:3=​