Question

1)calcule o valor das expressões:
A) 25-[12‐(12‐(3×2‐)]=
B) 90-[25+(5×2‐1)+3]=
C) 45+[(8×5-10:2)+(18:6-2)]=
D) 50-2×{7+8:2-[9-3×(5-4)]}=
E) 100-3×{5+8:2-[3×(7-6=
Ajuda aí por favor

Answer 1

Resposta:

A)25-[12‐(12‐(3×2)]=

25-[12-(12-6)]=

25-[12-6]= 19

B)90-[25+(5×2‐1)+3]=

90-[25+(9)+3]=

90-37= 53

C)45+[(8×5-10:2)+(18:6-2)]=

45+[(40-5)+(3-2)]=

45+[35+1]= 81

D)50-2×{7+8:2-[9-3×(5-4)]}=

50-2×{7+8:2-[9-3]}=

50-2×{7+8:2-6}=

50-2×{7+4-6}=

50-2×5=

50-10 = 40

E)100-3×{5+8:2-[3×(7-6)]}=

100-3×{5+8:2-[3×1]}=

100-3×{5+8:2-3}=

100-3×{5+4-3}=

100-3×6=

100-18= 82