Question

Resolva as expressões numéricas:
a) 100-3x{5+8:2-[3x(7-6)]}
b) (12 + 2 x 5) - 8 =
c) 25 - ( 15 + 6 : 3) =
d) 1000 - [(2 x 4+ 6) + ( 2 + 6 x 4)]
e) 25 +[7 + ( 8 - 4 :2)]

Answer 1

A) 100-3×{5+8:2-[3×(7-6)]} =

100-3×{5+8:2-[3×1]}

100-3×{5+8:2-3}

100-3×{13:2-3}

100-3×{13:1}

100-3×13

97×13

(1,261)

B) (12+2×5)-8 =

(14×5)-8

70-8

(62)

C) 25-(15+6:3)=

25-(21:3)

25-7

(18)

D) 1000-[(2×4+6)+(2+6×4)]

1000-[(2×10)+(2+6×4)]

1000-[20+(8×4)]

1000-[20+32]

1000-52

(948)

E) 25+[7+(8-4:2)]

25+[7+(4:2)]

25+[7+2]

25+9

(34)

(Espero ter ajudado).