1、2245+24012 124+78+22 100-35-25 (140-70)54 63+84242 4907+245 266-110 345+9942525274 157+857 (40 4 )25 12564+24 240080142 108(83 36060) (42048 )(375 345) 290(343+99) 142549+14 24016+99 75425234079964 1676766 9953+53 720362 10335+225 4502 (169) 245( 45+39) 50012825 473+59+27+1 9899400 125(84)5 4125-258
2、81251021 420(205198)4 402-54 460( 29183 ) 72036 +99 (960400 )70 298+99 (1+99)+(98+2) 24158+262+138 375+219+381+225 50012471021232(181+2564)+2719 114+242+222 276+228+353+219 375+1034+966 (2130+783+270)+1017 99+999+9999+99999 7755(2187+755) 2214+638+286 30657381065 899+344 2357183317357 23651086 214 4
3、97299 2370+1995 253999+498-1883 1225 +7524 138254 (13125)(38) (12+24+80)50 704251086 2532125 32(25+125) 178101178 8436+6484 7599+275 83102832 123181233+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 1996-96274 10000-(5966)64 594045(798-616) (31540-364)7 26125208(12111) (2010-906)(65
4、+15) (639-719)167 (10800-8004)4 72090488 36(913+27623) (932521)9 5071363498 723(521+504)25 3841223371 (3921)(3966) 720(1532) 3889(108 931)5 (80020050)37. 7755-(2187+755) 272214+638+286= 3065-738-1065= 45+156= 25058=365+24= 303+8= 4004+205= 10+123+20= (8020+80)4= 9023= 1663= 30069= 54097= 302015= 70+
5、(100-105)= 36040+10=4020-200= (80-25)2= 40047= (350-80)9= 160+70+50= 18-648= 426+20= 40-57= 2880+603= 41+182= 75-115= 42+7-29= 560080+365= 25164= 120255= 36113= 1025258= 336+70-6= 2594= 200-333= 1250+10= 258+199= 2311-13= 4200-2200+200= 220+80-150= 2085= 600-3200= (20+20)(35-2)=36+8-40= (140-70)54 63+84242 4907+2452945+24012 157+857 (46-20)30-90 25274 (404)25 240080142 142549+14 1676766