Question

Buna! Am facut adunarea si scaderea nr. intregi.Propritati.Desfacerea parantezelor..
+5+(-9)-(+4)+(-13)-(-7)+(-8)=?
-8+(+4)-(-2)+(-15)-(+10)+(-17)=?
-14+(-18)-(+3)+(+12)-(-9)+(-17)=?
10+(-11)-(+7)+(-3)-(-12)+(-4)=?
+7+(-8)-(+5)+(-12)-9+(-6)=?
-9+(+5)-(-3)+(-16)-(+11)+(-10)=?
27-(3+20-9)+(-18+5-2)=?
-18+(-13+4-7)-(-9+15+3)=?
16+(-3+4-6)-(-8+5-7)=?
-24-(11-10+4)+(13-21+4)=?
22+(-14+8-9)-(-12+11-3)=?
-18+(-10+19-14)-(16-11+8)=?
-15+(-18)-(+4)+(+11)-(-7)+(-19)=?
12+(-13)-(+8)+(-4)-(-15)+(-6)=?
14+(-2+3-5)-(-7+4-6)=?
-23-(10-9+3)+(12-19+3)=?
21+(-13+7-9)-(-11+9-2)=?
-17+(-9+18-13)-(15-10+7)=?
28-(4+21-10)+(-19+6-3)=?
-19+(-14+5-8)-(-9+15+3)=?
-23-(16-8+12)+(-13+16+9)=?
18-34+(-4)-(-10)-(+11)-(-4)=?
21-(7-11+10-12)+(-5+7-9)=?
3+(12-19+8-15)-(-11+8+12)=? Va rog sa.mi raspundeti am nevoie urgentaa. Va rogg

Answer 1

1) +5 - 9 - 4 - 13 + 7 - 8 = +5 + 7 - 9 - 4 - 13 - 8 = + 12 - 44 = - 32
2) - 8 + 4 + 2 - 15 - 10 - 17 = + 4 + 2 - 8 - 15 - 10 - 17 = + 6 - 45 = - 39
3)- 14 - 18 - 3 + 12 + 9 - 17 = - 14 - 18 - 3 - 17 + 12 + 9 = - 52 + 21 = - 31