Question

a) 18 + [13 + 4 – (5 – 7) + 6] = e) (5 – 4 x 6) x [3 – (– 2) x 4 x (– 3)] =
b) 15 – [12 – 3x 4x (– 5) + 10] = f) [3 – (5 + 15 ÷ 3)] ÷ [16 – (– 3) x (– 5)] =
c) 18 – [2 – (4 + 5) x (– 4 + 9)] = g) 15 – [4 x (– 5 + 4 x 3) – 3] + [32 ÷ (– 8)] =
d) – [13 – (12 – 6)] – [3 x (– 6)] = h) – [16 – (8 – 5 x 6)] – (6 – 8 ÷ 2) x (– 7) =

Answer 1

Respuesta:

a)

$18 + [13 + 4 - (5 - 7) + 6]= 18 + [17 - (-2) + 6]=18 + [17 +2 + 6]=18+25=43$

b)

$15 - [12 - 3. 4. (- 5) + 10]=15-[12+60+10]=15-82=-67$

c)

$18 - [2 - (4 + 5) . (- 4 + 9)]=18-[2-(9)(5)]=18-[2-45]=18-(-43)=18+43=61$

d)

$-[13 - (12 - 6)] - [3 . (- 6)]=-[13 - 6]-(-18)=-(7)+18=11$

e)

$(5 - 4 . 6) . [3 - (- 2) . 4 . (- 3)]=(5-24).[3-(24)]=(-19)(-21)=399$

f)

$[3 - (5 + 15 / 3)] / [16 - (- 3) . (- 5)]= [3 - (5+5)]/[16-15]=[-7]/1=-7$

g)

$15 - [4 . (- 5 + 4 . 3) - 3] + [32 / (- 8)]= 15 - [4 .7-3]+[-4]=15-[25]-4=-14$

h)

$- [16 - (8 -5 . 6)] - (6 - 8 / 2) . (- 7)=- [16 - (-22)]-(-2)(-7)=-[38]-14=-52$