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a) <math>831+1196=2027</math>
b) <math>987-789=198</math>
c) <math>14,2 \cdot 3,1 = 44,02</math>
d) <math>1620:120= \frac{1620}{120} = \frac{162}{12} = 13,5</math>
a) <math>831+1196=2027</math>
b) <math>987-789=198</math>
c) <math>14,2 \cdot 3,1 = 44,02</math>
d) <math>1620:120= \frac{1620}{120} = \frac{162}{12} = 13,5</math>