六年级口算题及答案.doc

2.80.4 1.12147.46.6,1.920.0448,0.32500160,0.654.35 5105.44.6,4200.2,3.5200700,1.50.061.440.75150.05,0.40.80.32,40.251,0.361.5421.019999.99,4203512,2512300,1350.52703/4 + 1/4 =1,2 + 4/9 =22/9,3 - 2/3 =7/3,3/4 - 1/2= 1/41/6 + 1/2 -1/6 =1/2,7.5-(2.5+3.8)=1.2,7/8 + 3/8 =5/43/10 +1/5 =1/2,4/5 - 7/10 =1/10,2 - 1/6 -1/3 =1.50.51170.03,32.81951.8,5.21.34,1.60.4 0.644.90.73.43,150.2,6120.5,0.870.490.381.(1+1/2)(1+1/3)(1+1/4).(1+1/100)2.(1-1/2)(1-1/3)(1-1/4).(1-1/100)3.8+2-8+24.25*4/25*45.7.26-(5.26-1.5)6.286+1987.314-2028.526+3019.223-9910.6.25+3.85-2.125+3.87511.9-2456*2112.0.5/11.5-4*2.7513.1/23/514.3.375+5.75+2.25+6.62515.100190361816.3.85.25+14.517.2.1*4.3+5.7*2.118.301/319.102*45-32820.2/31221.2.8*3.1+17.6/822.3/55/623.(50-12.5)/2.524.2/51/325.6110*47+63926.1/2-1/627.3.5*2.7-52.2/1828.1/71/529.3.375*0.97+0.97*6.62530.254/531.6.54+2.4+3.46+0.632.5/6-1/233.95.6*1.8+95.6*8.234.1/21/535.600-420/1236.344/3.6-5.4*0.2537.16/2+30/2+90/638.3001-1998.39.5000-105*3440.0.15/0.25+0.75*1.241.(1/2+1/3+1/4)*0.2442.(25+4)*443.300-4263/2144.0.81/0.25+5.9645.403132746.1.54.20.750.2547.3.274 +3.275.748.（1.2+ 1.8）4.510257683249.0.25800.450.950.10257683251.0.25*2.69*452.2348+275*1653.2/9*15/8-1/12*9/554.2.4+2.4*(5.375-3.375)55.645-45*1256.0.15+1.2/0.24-0.4557.3.75-(2.35+0.25/1.25)58.76*1/4+23*25/100+0.2559.10-2.87-7.1360.0.96+9.6*9.961.7.5-5.7*1/362.12.37-3.25-6.7563.16*6.8+2.2*16+1664.401*19+28465.58.7-16.65/3.766.0.4*4.7*2.5+(2.3+5.3)67.9.31-1.125-7.87568.640+128*4569.8.2*1.6-0.336/4.270.400*(0.62+0.08)59+73=132 83+38=121 56+74=130 162+959=1021 135+69=204 47+98=145536+469=1000 915+85=1000 351+649=1000208+792=1000 873+127=1000 989+109=109880+370=450 120-80=40 64+5=2982-（98）=10 648=8 45+37=8294-28=66 （72-30）6=7 510+400=91082-39=43 567=8 36+287=4047+35=82 620+80=700 57+8=4374-47=26 725+275=1000 328+672=100 641+359=1000 936+64=1000 183+817=1000649+326=1075 720-465=255 800-235=565905-245=660 634-57=577 459-68=391754-697=57 900-768=132 953-804=149801-765=36 200-94=106 706-327=379936-588=348 825-648=177 728-439=289473-387=86 400-84=316 302-187=115517-253=264 908-129=779 716-224=492483-194=289 800-324=476 975-385=590500-222=278 906-345=561 900+820=1720235+198=433 398+299=697 620-489=131502-488=14 806-728=78 594+382=976469+247=516 365+640=1005 548-279=269249+781=1030 900-374=526 724-385=339690-305=385 638-276=362 243+467=710800-465=335 905-368=537 687+329=1016706-499=207 888+135=1023 364+436=800 675-388=287 716+235=805 947-828=119563+245=805 655-135=520 409+198=607500-367=133 702+268=970 298+76