Question

Calculează respectând ordinea operațiilor a) 548 plus 789 minus 2 ori 6 minus 5 ori 7 egal b) 4 ori 3 minus 2 ori 6 plus 243 minus 3 ori 8
c) 45-(23+2×5)+49-6×8
d) (24-14)×6-43+5×5
e) 7×6+3×2×5-13+(3×9-2×4)
f) (5×2×4-10-5)×(4×9+4-3×10)​

Answer 1

Răspuns:

548+789-2x6-5x7=

548+789-12-35=

1337-12-35=

1325-35=1290

4x3-2x6+243-3x8=

12-12+243-24=

0+243-24=219

45-(23+2×5)+49-6×8=

45-(23+10)+49-48=

45-33+49-48=

12+49-48=

61-48=13

(24-14)×6-43+5×5=

10x6-43+25=

60-43+25=

17+25=42

7×6+3×2×5-13+(3×9-2×4)

42+6x5-13+(27-8)=

42+30-13+19=

72-13+19=

59+19=78

(5×2×4-10-5)×(4×9+4-3×10)=

(10x4-10-5)x(36+4-30)=

(40-10-5)x(40-30)=

25x10=250