有理数的加法

(+8.63)+(-6.235)= -5.7+(-9.2)= 0+(-3.14）= 15＋（－22）= （－13）＋（－8）= （－0.9）＋1.51 = = 23＋（－17）＋6＋（－22）= （－2）＋3＋1＋（－3）＋2＋（－4）= = = = = = = = = = = = = = = = = = = = = = = = ； （－38）＋52＋118＋（－62）＝ （－32）＋68＋（－29）＋（－68）＝ （－21）＋251＋21＋（－151）＝ 12＋35＋（－23）＋0＝ （-6）+8+（-4）+12 = 27+（-26）+33+（-27） 12＋35＋（－23）＋0＝ 39+（-23）+0+（-16）= （-18）+29+（-52）+60= （-3）+（-2）+（-1）+0+1+2= （-301）+125+301+（-75）= EMBED Equation.3 4.7+3.4+8.5 （―3）＋（－7）= （＋12）＋（－29）= = （－3.6）＋（－2.5）= （＋2）－（＋9）= （－3.8）－（＋4.7）= = = (－4 )－［(－4 )－(－3 )］ -4.2+5.7-8.4+10 6.1-3.7-4.9+1.8 -16-57+48+12-78 81.26-293.8+8.74+111 12-（-18）+（-7）-15 -40-28-（-19）+（-24）-（-32） 4.7-（-8.9）-7.5+（-6） _1234567905.unknown _1347105981.unknown _1347165941.unknown _1347167159.unknown _1347174339.unknown _1347175568.unknown _1347218437.unknown _1347218628.unknown _1347218681.unknown _1347218845.unknown _1347218481.unknown _1347175583.unknown _1347174396.unknown _1347174418.unknown _1347174434.unknown _1347174382.unknown _1347174305.unknown _1347174318.unknown _1347167539.unknown _1347167913.unknown _1347174281.unknown _1347167685.unknown _1347167260.unknown _1347166866.unknown _1347166983.unknown _1347167060.unknown _1347166924.unknown _1347166148.unknown _1347166728.unknown _1347166026.unknown _1347162079.unknown _1347163031.unknown _1347163569.unknown _1347163886.unknown _1347163980.unknown _1347163599.unknown _1347163503.unknown _1347162218.unknown _1347162959.unknown _1347162371.unknown _1347162092.unknown _1347161971.unknown _1347161997.unknown _1347161933.unknown _1314534382.unknown _1334871814.unknown _1334872265.unknown _1334872605.unknown _1335557445.unknown _1335557435.unknown _1334872437.unknown _1334872060.unknown _1334872201.unknown _1334871945.unknown _1314534509.unknown _1314534542.unknown _1334871614.unknown _1314534442.unknown _1234567950.unknown _1234567952.unknown _1234567954.unknown _1314534274.unknown _1308070595.unknown _1234567953.unknown _1234567951.unknown _1234567907.unknown _1234567908.unknown _1234567906.unknown _1234567897.unknown _1234567901.unknown _1234567903.unknown _1234567904.unknown _1234567902.unknown _1234567899.unknown _1234567900.unknown _1234567898.unknown _1234567893.unknown _1234567895.unknown _1234567896.unknown _1234567894.unknown _1128443500.unknown _1234567891.unknown _1234567892.unknown _1234567890.unknown _1126097353.unknown _1126097361.unknown _1126097370.unknown _1095526404.unknown