Question

30+[-16-(-7+10)]=?
-10-[11+(-10-6)+1]=?
18-(14+15)-[13-(16-21)]=?
-(-22)-[29+(27-23-26)-28]=?
9-(-10)-[-21-(-13-13+25)]-(-18)=?
11+[-17-(-22+16)+(-29)]-(-46+54)=?

Answer 1

Olá, Maria. (=^.^=)/

A) 30+[-16-(-7+10)] = 11
B) -10-[11+(-10-6)+1] = -6
C) 18-(14+15)-[13-(16-21)] = -29
D) -(-22)-[29+(27-23-26)-28] = 43
E) 9-(-10)-[-21-(-13-13+25)]-(-18) = 57
F) 11+[-17-(-22+16)+(-29)]-(-46+54) = -37

A) 30+[-16-(-7+10)] = 

30+[-16-(3)] = 
30+[-16-3] = 
30+[-19] = 
30-19 = 11

B) -10-[11+(-10-6)+1] = 

-10-[11+(-16)+1] =
-10-[11-16+1] = 
-10-[12-16] = 
-10-[-4] = 
-10+4 = -6

C) 18-(14+15)-[13-(16-21)] = 

18-(29)-[13-(-5)] = 
18-29-[13+5] = 
18-29-[18] = 
18-29-18 = 
18-47 = -29

D) -(-22)-[29+(27-23-26)-28] =

22-[29+(27-49)-28] = 
22-[29+(-22)-28] = 
22-[29-22-28] = 
22-[29-50] = 
22-[-21] = 
22+21 = 43

E) 9-(-10)-[-21-(-13-13+25)]-(-18) = 

9+10-[-21-(-26+25)]+18 = 
9+10-[-21-(-1)]+18 = 
9+10-[-21+1]+18 = 
9+10-[-20]+18 =
9+10+20+18  = 57

F) 11+[-17-(-22+16)+(-29)]-(-46+54) = 

11+[-17-(-6)-29]-(8) = 
11+[-17+6-29]-8 = 
11+[-46+6]-8 = 
11+[-40]-8 = 
11-40-8 = 
11-48 = -37

Bons estudos! :-)