Question

N) 45 + { 15 - [ ( 10 - 8) + ( 7 - 4) - 3 ]- 4}
O) 40+ { 50 - [ 35 - ( 25 + 5) - 1 ] }+ 7
P) 38 - {20 - [22 -( 5 + 3) + ( 7 - 4 + 1) ] }
Q) 26 + { 12 - [ ( 30 - 18 ) + ( 4 - 1) - 6 ] - 1 }
R) 25- [ 10 + ( 7 - 4) ]
S) 32 + [ 10 - ( 9 - 4) + 8]

PS: QUERO A CONTA!!!!!!!!

Answer 1

N) 45 + { 15 - [ ( 10 - 8) + ( 7 - 4) - 3 ]- 4}
=> 45+{15-[2+3-3]-4}
=> 45+{15-2-4}
=> 45+9=> 54

O) 40+ { 50 - [ 35 - ( 25 + 5) - 1 ] }+ 7
=> 40+{50-[35-30-1]}+7
=> 40+{50-4}+7
=> 40+46+7=> 93

P) 38 - {20 - [22 -( 5 + 3) + ( 7 - 4 + 1) ] }
=> 38-{20-[22-8+4]}
=> 38-{20-18}
=> 38-2=> 36

Q) 26 + { 12 - [ ( 30 - 18 ) + ( 4 - 1) - 6 ] - 1 }
=> 26+{12-[12+3-6]-1}
=> 26+{12-9-1}
=> 26+2=> 28

R) 25- [ 10 + ( 7 - 4) ]
=> 25-[10+3]
=> 25-13=> 12

S) 32 + [ 10 - ( 9 - 4) + 8]
=> 32+[10-5+8]
=> 32+13=> 45