Question

d) (20 - 3) + (7 + 5) =
f) 3 - [5 - (4 - 6)]=
h) -8 + [4-(7 - 13) - 1] + 5 =
j) -13 - [10 - (7+5)] =
1) {16 - [12 + (20 - 25)]}​

Answer 1

Resposta:

d)17+12=29

f)3-[5-2]= 3-3=0

h)-8+[4-6-1]+5 =-8-3+5 =-11+5=-6

j)-13-[10-12]+5 = -13-[-2]+5= -13+2+5= -13+7= -6

1) {16-[12+(-5)]}= {16-[12-5]}= {16-7}= 9

Answer 2

Resposta:

d) (20-3) + (7+5) =

17 + 12 =

29

f) 3- [5- (4-6)] =

3-[5 - (-2)] =

3-[5 + 2] =

3 - 7=

- 4

h) -8 + [4-(7 - 13) - 1] + 5

- 8 + [4 - 6 - 1] + 5

- 8 + 9 + 5

6

j) -13 - [10 - (7+5)] =

- 13 - [10 - 12]

- 13 - [ -2]

- 11

1) {16 - [12 + (20 - 25)]}

{16 - [12 + ( -5 )]}

{16 - [12 - 5]

{16 - 7}

9