Smartbeach1250ask Smartbeach1250ask Matematică a fost răspuns 7) a) [+427–(+401–86):(–217+681–359)]:(–212) = b) –710: [+139–(+432–579–156):(–322+423)]) = c) –628:[+153–(+578–237–429):(–217–341+580)] = d) –420:[+147–(+284–168–144):(–304+158+142)] = e) [(+372–184–168):(+156–278+102)–523]:(+131) = f) [(+174–521+121):(–384+912–415)–373]:(+125) = g) [(+172–489+237):(–815+617+118)–433]:(+144) = h) [(–632+147+279):(+453–199–151)–283]:(+95) = i) [(–143+891–534):(+536–231–412) –412]:(+138) = j) [(+623–495–384):(–321+245+332) –417]:(+209) = 8) a) –5∙{+7+[+9+(–2–5+3)∙(–6+2+5)]:(–5)} = b) {–3∙[–5–(+4–6–2):(–9+2+3)–10]}:(–8) = c) {+1–[+7–(+8+9–5):(+6–7–5)]:(–3)}:(–2) = d) –2∙{–9–[+8–2∙(–3+1–6)]:(–9+7–4)} = e) {–3∙[–6+(+2–5+7)∙(–3+5–2)]–9 }:(+6–1–2) = f) {+9–[–8–(–8):(–2)+(–9):(–3)]:(–3)}:(–3) = g) {+7–[–1–(–5+2–7):(–5)+8]:(–5)}:(–2)= h) {+2–[+6–4:(–2)+6:(–2)+3]:(–2)}:(–2) = i) {+5–[–6–3:(+3)–4:(–4)+8]:(–2)}:(–2) = j) {+3–[+6–(–8+2+1):(–5)–4:(+2)]:(–3)}:(–2) = 9) a) {+37+[+82–(–25+36–29):(+82–57–34)]:(–16)}:(–16) = b) {+2–[+45–67∙(–79+26+53)]:(+27–42)}:(–15) = c) {–15– [+23–(+71–63–40):(+39–55)]:(–3)}:(–2) = d) {+26+[–45–(+76–29–44)∙(–25+61–39)]:(–9)}:(–3) = e) +84:{+37–[–53–68:(–49+31+52)]:(+27+15–31)} = f) +51:{ –6∙[–19–(+32–15–27)∙(–67+23+45)]–37} = g) {+37–[–89–5∙(+32–61+43):(–2)]:(–6)}:(–7) = h) {+73–[(+83–45–59):(+34–89+48)–28]:(–5)}:(–4) = i) {[(+81–95–32):(–78+27+74)–73]:(+25)+84}:(–27) = j) {[(–38+17+59):(+49–31–20)–45]:(–16)+32}:(–18) = 10) a) {+427–[+626–248:(–124) –528:(1763)]:(–125)}:(–144) = b) {–124+[+712–(–248+196+234–182):(–624+246+348–124)]:(+178)}:(+120) = c) {–171–[(+256–132–176+104):(–406+213+245)–189]:(+188)}:(+170) = d) {+433–[(+396–182–146):(+328–214–308+126)–124]:(+125)}:(+217) = e) {–275:[(+382–144–168):(+471–248–315+127)–277]–143}:(+144) = f) +916:{[+216–(+378–224–286+192):(+362–214–168)]:(+219) –459} = g) {+167– [(–246+186+232–148):(–177+281–308+216)–488]:(+243)}:(+169) = h) {–149–[(–186+138+136):(+235–171–108)–154]:(+156)}:(+148) = i) –90:{+47–[–68–(32):(–16)–(+46):( –23)]:(–34) } = j) +84:{–49+[–84–(–99):(–11):(–3)+(+63):(–21)]:(–12)} =