四年级下学期数学递等式300道之欧阳术创编

欧阳术创编欧阳术创编2021.02.02 欧阳美创编2021.02.02欧阳术创编欧阳术创编2021.02.02 欧阳美创编2021.02.02518518+171+482+129时间：2021.02.02创作：欧阳术329+78+27159x4x253x125x13x896x1254x301x25x3326+326x99104x7323x(300+2)58+19x5832x62+68x6216x21x250103x15125x39-25x3925x20450x16x12544x250125x25x50x64(750+250)-125x12593+(356+207)567:63+15x23199x99+9938x(209-87:29)53x28+71x53+53864;【(2193-1457):23】86x103+359201x9369x59+42x69-69101x38-25x38x42310:【235-160:(18+22)】(125+9)x825+34+375+166328-(257-172)-143356:4x(470-362)(25+125)x3254+99x99+4514+14x52+53x8618x69-18+32x1836x25-25x20+16x75125x88250250x4+1050:25625:25x4-25(480+33x14):15748x25:48x25(1408-45x24):41804x25621:21+102x15476+249+324-495974:103+(221-163)x18(25x125)x(27x32)125x72+2525x16x125386+137+114-3756x125+8(125+4)x7232x(125+25)105-5x(4992:48-86)374-186-114125x4+25x8637-(237-65)79x79-79+22x79199x199904x(386-264)3150-9018:18-107204x35-846:61961+49x67-1823x98+2340x(72+28)364-187+36-2132048-567:7x57x88x125【2145-(517+388)】x2425x125x4827x24x2577x56+1108(132-56):387200:81x91001x999【1128-(128+500)】：25x2101x49+250x8x478x32+67x32+78【(576:36)+14]x556480-259-141+3204837-181+719125x801777x6+111x58554x64+446x6435x35+35x64+3584x25450-[{393-388)x(6+4)】15x27+73x1673x165+73-73x664600-25-45327-4500-327700-82+1885x65-14x85-85125x25x38x4x899x99+99x315x19+15x18+21x451000-125x84400-25-41360-(136-2)98x219000-8-12590-90-9540x31-27017x4x2525x33x40125x19x825x125x16125x3225x482008x25125x792125x(40+8) (100-4)x25(80-4)x2557x32+32x43173x61-73x6152x14-22x1481+791x9101x32-3272+99x72158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812x2575x24138x25x4(13x125)x(3x8)(12+24+80)x50704x2525x32x12532x(25+125)88x125102x7658x98178x101-17884x36+64x8475x99+2x7583x102-83x298x199123x18一123x3+85x12350x(34x4)x325x(24+16)178x99+17879x42+79+79x577300-25-48100-4-7516800-12030100-210032000-40049700-7001248-243150-154800-2521500-1252356-(1356-721)1235-(1780-1665)75x27+19x2531x870+13x3104x(25x65+25x28)31.50+160-4032.120-144-18+3533.347+45x2-4160-5234(58+37)-(64-9x5)138-43-57-38498+397(78+61)+39(2)700-82-18348+163+242+410+537125x47-47x25201x316374-205+226-953000-999997x7+21(9)87x470+870x53(55+55+55+55x5)x125125x(8+40)x25(12)99+49x99264x97+4x264454+999x999+5459999x36+6666x3x32124x38+65x124+76x110-76x762x4+44x5+5x183400-62x34-38x20-38x14502-39963-45-55+137125x56302x99+302145x8138-43-57-38498+397502-39963-45-55+137125x565.302x99+302145x89+145x21138-43-57-38498+397502-39963-45-55+137125x56302x99+302145x89+145x21..9+145x21138-43-57-38368+2649+135189+101+11124+127+476+573400-273-127327+(96-127)、72x98442-103-142999+99+9

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