Question

va rog mult ajutați-mă plz(toate dacă vreți)

Answer 1

1)=
(5+203):2+[230-(76+9)]=
208:2+230-85=104+230-85=334-85=249

2)=
[(51+43):2]x31+17-(125+7)=
94:2x31+17-132=
47x31+17-132=
1457+17-132=1474-132=1342

3)=
(140+30):10+81-[25x(39-38)]=
170:10+81-(25x1)=17+81-25=98-25=73

4)=
(114:3)+14400-(39x6:2)+8=
38+14400-117+8=14329

5)=
[(31-21):10]+(10+40)=
10:10+50=1+50=51

6)=
87-38+[2000-(34+13)]=
49+(2000-47)=49+1953=2002

7)=
34+[94+(62+45-39)]=34+94+68=196

8)=
[(42x34):2]+35000-714=1428:2+34286=714+34286=35000

9)=
26+(4000-38x15):5-73=26+(4000-570)-73=26+3430-73=3383

10)=
(93+370-288)-(10+307)=175-317=-142

11)=
400+120+(34+4x50)=520+34+200=754

12)=
(1+35-30):2x(16-15):[3:(1+2)+2]=
6:2x2x1:(3:3+2)=3x2:(1+2)=6:3=2

13)=
98+8x[1004-4x(8-2)]=98+8x(1004-4x6)=98+8x(1004-24) =
=98+8x980=98+7840=7938

14)=
[1+2x(6+2)-5]:6=
(1+2x8-5):6=
(1+16-5):6=12:6=2

15)=
1000-(409x2+7x5)=1000-(818+35)=1000-853=147

16)=
[(5+3)x7+(3+3+27)]x7=(8x7+33)x7=(56+33)x7=89x7=623

17)=
[(144+195)-2}+(2000-10)=339-2+1990=337+1990=2327

18)=
[(140:20)x5]+[31x(120+28)-83]=
7x5+(31x148-83)=
35+4588-83=4623-83=4540