Question

a. [+ 16 – (-35 + 52) + 13] – [- 29 + (46 – 59) – 12] =

b. (-13) + (-14) – (+15) + (-11) – (+19) =

c. (+24) – (-34) – (+25) – (-31) – (+29) =

d. (-9) + (-8) + (+5) – (+12) – (-10) =

e. – 66 + 27 – {- 52 – [- 13 + 42 – (- 18 + 15) ] }

Answer 1

Respuesta:

a. [+ 16 – (-35 + 52) + 13] – [- 29 + (46 – 59) – 12] =

$=12-\left[-29+\left(46-59\right)-12\right]\\\\=12-\left(-54\right)\\\\=66$

b. (-13) + (-14) – (+15) + (-11) – (+19) =

$=\left(-13\right)-14-\left(15\right)+\left(-11\right)-\left(19\right)\\=-27-\left(15\right)+\left(-11\right)-\left(19\right)\\=-42+\left(-11\right)-\left(19\right)\\=-42-11-\left(19\right)\\=-53-\left(19\right)\\=-72$

c. (+24) – (-34) – (+25) – (-31) – (+29) =

$=\left(24\right)+34-\left(25\right)-\left(-31\right)-\left(29\right)\\=58-\left(25\right)-\left(-31\right)-\left(29\right)\\=33-\left(-31\right)-\left(29\right)\\=33+31-\left(29\right)\\=64-\left(29\right)\\=35$

d. (-9) + (-8) + (+5) – (+12) – (-10) =

$=\left(-9\right)-8+\left(5\right)-\left(12\right)-\left(-10\right)\\=-17+\left(5\right)-\left(12\right)-\left(-10\right)\\=-12-\left(12\right)-\left(-10\right)\\=-24-\left(-10\right)\\=-24+10\\=-14$

e. – 66 + 27 – {- 52 – [- 13 + 42 – (- 18 + 15) ] }

$=-66+27+52-\left(-13+42-\left(-18+15\right)\right)\\=-66+27+52-32\\=-19$