Question

B1:

a, 35 - {12-[-14 + (-2)]}

b,49 -(-59) - 23

c, -452 - (-67 + 75 - 452 )

Answer 1

a)\(35-\left\{12-\left[-14+\left(-2\right)\right]\right\}\)
\(=35-\left(12+16\right)\)
\(=35-28=7\)
b)\(49-\left(-59\right)-23\)
\(=49+59-23\)
\(=108-23=85\)
c)\(-452-\left(-67+75-452\right)\)
\(=-452+67-75+452\)
\(=\left(-452+452\right)+\left(67-75\right)\)
\(=0+\left(-8\right)=-8\)

Answer 2

`a, 35 - {12-[-14 + (-2)]}`

`= 35 -[ 12- (-16)]`

`=35-(12+16)`

`=35- 28`

`=7`

`b,49 -(-59) - 23`

`=49 + 59-23`

`=108-23`

`=85`

`c, -452 - (-67 + 75 - 452 )`

`= -452 - (8 - 452 )`

`= -452 -(-444)`

`= -452+444`

`= -8`

`@ bThuw`

Answer 3

\(a,35-\left\{12-\left[-14+\left(-2\right)\right]\right\}\\ =35-\left\{12-\left(-16\right)\right\}\\ =35-28\\ =7\\ b,49-\left(-59\right)-23\\ =108-23\\ =85\\ c,-452-\left(-67+75-452\right)\\ =-452-\left(8-452\right)\\ =-452-8+452\\ =\left(-452+452\right)-8\\ =0-8\\ =-8\)

Answer 4

Answer 5

\(a,35-\left\{12-\left[-14+\left(-2\right)\right]\right\}\)

\(=35-\left\{12-\left(-16\right)\right\}=35-28=7\)

\(b,49-\left(-59\right)-23\)

\(=108-23=85\)

\(c,-452-\left(-67+75-452\right)\)

\(=-452-\left(8-452\right)=-452-\left(-444\right)=-8\)