Matematică
catala125
18

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

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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

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