小学整数、小数四则运算50题附答案.doc

整数、小数四则运算、简便运算题1757525 683513 725（125237）=175-3 =68+455 =725-362=172 =523 =363（114166）35 432（98） 1896040 =28035 =43272 =129+40 =8 =6 =1692163055 4723664 5+2544=216+61 =47+(236+64) =5+25(40+4)=277 =47+300 =5+2540+254 =347 =5+1000+100 =1105 10299 8+2125 645-180-245=102(100-1) =8+250 =645-245-180=102100-102 =258 =400-180=10200-102 =220=10098382101-382 460508 358+356-435=382(101-1) =(450) (608) =35(8+6-4)=382100 =200480 =3510=38200 =96000 =3500.1750.254 0.1750.250.4 200（17272）25=0.74 =0.175(0.250.4) =20010025=2.8 =0.1750.1 =2004 =1.75 =50630840（240212） 80025 2000125 =63084028 =8001004 =200010008=63030 =84 =28=18900 =32 =1625634 9000125 9911 =(254) 63 =900010008 =(100-1) 11=10063 =98 =1100-11=6300 =72 =1089794198 6825 72125 =794-200+2 =17425 =98125=594+2 =17(425) =9(8125)=596 =17100 =91000 =1700 =9000973603360 124252524 =360(97+3) =25(124-24)=360100 =25100=36000 =25002800 100789 75138（100-54） 85(95144024) =28+789 =7513846 =85(95-60)=817 =753 =8535 =25 =297524078（154-115） 80400(430087015) 14372727563 =2407839 =80400-(4300+58) =27(1437+563)=240(7839) =80400-4358 =272000=2402 =76042 =54000=48075-（12+18）15 (6.8-6.80.55)8.5 7.20.8-1.25=75-30 15 =(6.8-3.74) 8.5 =9-6=4515 =3.068.5 =3=3 =0.360.12 4.80.124.8 95（64-45） 6.5（4.8-1.24）=(0.120.12) 4.84.8 =9519 =6.5(4.8-4.8)=14.84.8 =5 =6.50 =0 =23.042532125 7300254 8100475 =(254) (1258) =7300(254) =8100(475)=1001000 =7300100 =8100300=100000 =73 =27 32(25+125) 7810178 8436+6484 =4825+48125 =78(101-1) =84(36+64)=800+4000 =78100 =84100=4800 =7800 =8400 98199 7599+275 83102832 =98(200-1) =75(99+2) =83(102-2)=19600-98 =75101 =83100=19502 =75(100+1) =8300 =7500+75 =75753