1、要认真计算啊！加油！脱式计算8244x3 （601-246）5 201+232-365= = = = =（25+38）x15 （59-187）3 1500-125x8= = = = =25x8x9 （601-246）5 201+232-365= = = = =(25+33)X26 2+3x56= 63x147-198= = = = =735-35x12= 540(65-59) 789-13x45= = = = =224221 213410 402174= = = = =147728 94420 2804= = = = =12052 202369 305240= = = = =819877 66
2、5+774 921+74= = = = =8062 7707+65 807202= = = = =100505 35357 302302 = = = = =60083 401005 434255 = = = = =60123 648456 640604 = = = = =567366 500(400396) 7295= = = = =564+264-453 7650-(546+4530) 659-450= = = = =980+980 9000-(4500+250) 6700+728= = = = =146+95 900(71-68) 1809-426= = = = =126453 8(910
3、720) 760-540+1110= = = = = 6500+1250-3500 8030+5600 9450-3200-4200= = = = =2400645 800 7180 16002230 = = = = =4000 8 + 350 320864 270 3 9= = = = =630 9 + 320 2800+32 6 30069 = = = = =(6900-2400) 5 （729）(568) 54 9 8= = = = =280 4 5 608+1570 60(23-17) = = = = =224221 213410 402174= = = = =147728 9442
4、0 2804= = = = = 12052 202369 305240= = = = =819877 665+774 921+74= = = = =8062 7707+65 807202= = = = =100505 35357 302302 = = = = =60083 401005 434255 = = = = =60123 648456 640604 = = = = = 57486 427366 374198= = = = =104204 153105 255426= = = = =35587 729366 214549 = = = = = 72895 364212 255164 = =
5、 = = =567366 500(400396) 7295= = = = =564+264-453 7650-(546+4530) 659-450= = = = =980+980 9000-(4500+250) 6700+728= = = = =146+95 900(71-68) 1809-426= = = = =126453 8(910-720) 760-540+1110= = = = =6500+1250-3500 8030+5600 9450-3200-4200= = = = =2400645 800 7180 16002230 = = = = =4000 8 + 350 320864
6、270 3 9= = = = =630 9 + 320 2800+32 6 30069 = = = = =(6900-2400) 5 （729）(568) 54 9 8= = = = =280 4 5 608+1570 60(23-17) = = = = =96049 35059 4505+1250 = = = = =(6900-2400)5 7515205 309066= = = = =(387387)0 16016080 7505505= = = = =(111189)3 1258100 62500 = = = = =(17)(166) 81044 331149= = = = =18729
7、9299 587496674 26602626= = = = =153153+657 32(3216) 300(300222)= = = = =7515205 （15075）（2520） = = =33901095 687（9967）= = = = 1000（1000988） 35602090= = = = （250150）(306) 6879993= = =（4870-3675）72009 (9467-5642)(35070)= = = = 96049 35059 4505+1250 = = = = = (6900-2400)5 7515205 309066= = = = = (387387
8、)0 16016080 7505505= = = = = (111189)3 1258100 62500 = = = = = (17)(166) 81044 331149= = = = =187299299 587496674 26602626= = = = =153153+657 32(3216) 300(300222)= = = = =7515205 （15075）（2520） = = = =33901095 687（9967）= = = = 1000（1000988） 35602090 = = = = （250150）(306) 6879993= = = = 二、四则混合运算（50道）
9、501604 120-1448+35 （58+37）（64-95） 95（64-59） 178-14556+42 120-3649+35 85+14（14+2084） 21+（32723）4 19+(253-22)21 50+2028-42 (23+23)24-597 (110-10)5-10 45-24+1414 (70+10)(18-10) 1206+1854 44+1615-32 (30-1005)11 (53-12621)36 (60+10)(17-10) 17+(233-43)5 100510-60 4240475516 22+(374-10)4 (245-11)9-11 122-(
10、10+1005) 35-13+1015 (346-10)8-12 （145-6517)33 19+1926-10 2223-158 19+56-1244 (714-12)9-19 14+(21-19)14 18-(13+15)2 36(43-40)23 (227+13)(31-27) 36+1914-23 828912-488 18-15+1018 (61-1555)12 160(22-14)22 357713-213 985-2635 (438-39)7-12 (20+18)11-239 120-1449+35347+452-1605 （58+37）（64-95） 420+580-64217 36248+730
