Question

14.Calcule mentalmente.
a) 3-1 + 2/3
c) 7-2.49
b) 3-1.9
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Answer 1

A) 2 + $\frac{2}{3}$ = 6 + $\frac{2}{3}$ = $\frac{20}{3}$

B) 7-2 * 49 = 5*49  = 245

C) 3 - 1.9 = 1.1