1、 1 2800 100789 (947599)764 36(15276 23) (932521)9 723(521504) 25 (3921)(3966) 507 1363498 384 12331 37(7+6) 30 16(17-8) 3 28(5+9632) 81(72-54)9 5712560 35 848640 1612 960 (15003245) 192(5438)6 (12+24+80)50 32(25+125) 123181233+85123 25(24+16) 17899+178 (140-70)54 63+842 42 490 7+245 2 45+24012 157+8
2、57 (46-20)30-90 25274 (404)25 240080142 108 (8336060) (42048) (375345) 290 (343+99) 142549+14 75425 1676766 720 36 2 9953+53 4502(169) 245(45+39) 125(84)5 4125-25 420 (205198)4 460 (29183) (960400)70 (140-70)54 63+84242 4907+245 3 266-110 157+857 (46-20)30-90 (404)25 240080142 108(8336060) (42048)(3
3、75345) 290(343+99) 142549+14 1676766 9953+53 4502(169) 245(45+39) 125(84)5 4125-25 420(205198)4 460(29183) (960400)70 45+24012 124+78+22 100-35-25 (140-70)54 63+84242 4907+245 4 266-110 (46-20)30-90 157+857 (404) 25 240080142 108 (8336060) (42048)(375345) 290(343+99) 142549+14 1676766 9953+53 4502(1
4、69) 245(45+39) 4125-25 420(205198)X4 460(29183) (960400)70 43+3155 426-2793 98-194+62 51+1217 843-1368 (32+28) 6 32513 (266-250) 5 55+720(40-35) (220-180)8 36(287+23) (38+42)(52535) (135-72)7 72175 28(2466-32) 340-240205 (58+12)(968) 10663 248302 52430 364273 (13525)406 18(7958)27 (33889-19)34 (640+
5、75015)15 (72-57)38 892-(90562) 69(800700)5 254+320 822+59 328+125 85+324 6 813+311 13515+26 107-353 2063-1284 (482-42)22-17 573-12 16812-4812 18213+20813 52521-37821 3256-6 48+426-12 60-(303+3) 3113-22819 (15622432) 80 345 (128-5319) 776-(736152) 802+1005 45-2034 140-205+25 2030+2040 25(30+10) 80040
6、-40040 600(12060) (26+14)70 7 (26+14)(70-40) 90(301550) (35+45)(90-10) 610-(21+29) 25(22+263) 80(32+8)300 3000-(32+8)30 30169-(60+9) 320-(120+254) 36(3+6)2 180(3612)+6 45015+103 (40+18030)2 (240+180)(302) 800-8008030 800-(706+180) 65(40+203) 36+36012 5121+795 456+356 675-375 398-639 32678-32668 1209
7、0-11090 8 125(8+4) 12(40-5) 527+635 649-149 23134-3423 6848+6852 48101-48 655+355 49258 7932+7968 67101-67 2567-567 (75255)40 280025480 (380804) 60 6550+3550 270+3870 4(2565+2528) 125474725 340(12040 8) 45(720195719) 86+4500+(208836) 2 120-36418+35 (58+37) (64-95) 9 .(80 20+80) 4 360 40+10 4020-200 (80-25)X2 (350-80)9 360(126)5 288 (2614)8 5006-(502-80) (10512635) 25 864 (2723) 12 (453816) 24 500 (240386) 64(8742) 15 (845153)16 12(4928) 7 450 (8448 ) 12 (58+37)(64-95) 95 (64-45) 178-14556+42 812-700 (9+3111) 85+14 (14+20826) (284+16) (512-820818) 120-36418+35 (58+37) (64-95)