1、13 242412 34171 10584 282635 681501202 21522860 584298149 489412175 125-256 (135+75)(145) 120-6055 1024163 720-72015 (135+415)5+16 1200-2018 (360-144)243240+480302 225-10(6+13) (1202+120)9 164-135+85 330(65-50) 128-616 64(12+6513) 1996-96274 10000-(59+66)64594045(798-616) (31540-364)7 125208(12111)(
2、2010-906)(65+15) (20+12024)8 1069-7611713+3615 377437(65+35) 540-(148+47)(30830828)11 (10+1205 (238+756090)14 21(230-1924) 1964 7 735(700-40025) 1520-(1070+282) 9405-294021 920-1680407690+4752-398 148+332864-75 3602432+730 2100-94+4854 51+(2304-2042)23 4215+(4361-716)81 (247+18)2725 36-720(36018) 10
3、373-159-57 92017 84525 12016 980130360200240 8191001181900 153585 9081509092850 712900288 35615024434701210790 1050880120950 356315 182765118 24127476573 1753125593136287138 120300880 2706535 80015050800150250 1203624 39817228 920(80080)693165235 53453147 1200725275 60812476618(352282) 1800375425 25
4、74 1252395 125254 3210010 2333125 401325 3520 50262151225 534 5506710 5(249) 20(57) 7125(840) (403)25 125(108) 45101459979 491313 8139618 8026690150 (4008)25 159915 10190901358658 214698146 56(203) (808)259834 627387 9580 1027099120 101190 98120 10338052 20045 27045 54045800(208) 900(305) 1202 (7400
5、74)37(360036)18 (7800780)390 90001258 10002512+88= 258= 100-35-25= 1000125=65+35= 8125= 235-(35+27)= 300(254)=37+63+98= 2399+23= 725+90-25= 355+260+140+245 10299 2125 645-180-245 382101-382 608 358+356-435 480101 59899 21035 18ll 1258 39628224318957 27167316 62(100l) (3549)7 4425 591482118 99I268 98
6、6+1999 473+79-63 4600136101-136 347147= 254= 56777= 245155=205= 137= 753= 1258= 24=273351= 811= 752= 125(4+8) 32 40125 12541258 1254002525 123(2375) 1232375 58585842 3874(8741000) 3293862 347129147 60008 2532 95102 360457850144012 385616+8516 4000(16+83213)(326+9525)37 (723618228)28 (42752475)178-14
7、56+42 420+580-642128 812-700(9+315016040=54 120-14418+35=147 (58+37)(64-995(64-45) 178-1456+42 120-3618+35 85+14(14+20826) 21+(327-23)19= 539-513(37814)= 34-309413= 19+(253-22)21= 50+2028-42= (23+23)24-597= (110-10)10-10= 45-24+1414= 304-275(27525)= (70+10)(18-10)= 12018-54= 44+1615-32= (10-10010)11
8、= (53-58821)36= (60+10)(17-10)= 17+(233-43)10= 10010-60= 424-4751916= 22+(374-10)26= (245-11)18-11= 22-(10+10010)= (252-14)17-10= 35-13+1015= (346-10)16-12= 215-19811)= (45-65133= 19+19212-10= 5722223-158= 19+56-122434= (714-12)27-19= 14+(21-19)14= 18-(13+15)262= 736(43-20)23= (227+11)(31-14)= 36+1914-23= 8282312-48= 18-15+1018= (31-15411)12= (1369-37)37-32= 160(22-12)22= 35713-213= 985-72835= (438-39)21-12= (20+18)11-239= 5016040 (58+370)(64-45) 120-144
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