小学四六年级四则混合运算800题.doc

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1、12.451.350.651011/51/52121.32（6.32+8.3）501604027.3+73.2+72.7120-14418+35585+189+215347+452-4160525.851.750.25（58+37）（64-95）76827412695（64-45）5.85+1.89+2.15178-14556+4224.8+14.6+15.4812-700（9+3111）42.522.177.8385+14（14+20826）3.8+1.37+6.2+12.63120-36418+354.72+0.14.72+0.1=（58+37）（64-95）6255(6.8-6.80.5

2、5)8.5456240.124.80.124.822515（3.21.5+2.5）1.633636-1.64=5.38+7.85-5.37=33637.20.8-1.25=6-1.193-0.43=75306.5（4.8-1.24）=9+31165.8（3.87-0.13）+4.23.743713710.1332.52-（6+9.7283.2）2.5352412（7.1-5.6）0.9-1.152.5200405.42.6（3.7-2.9）+0.62844126（12-7.2）-648891267.2-64917250.681.9+0.321.910.750.6-3.958+370）（64-4

3、5）240405420+580-642128300502136+6（65-34523）49（1725）15-10.750.4-5.724040518.1（30.2990.23）130050200(6.8-6.80.55)8.5121111370.124.80.124.8（12111137）5（3.21.5+2.5）1.6280650133.26+（1.5+2.5）1.61000（28065013）0.681.9+0.321.92876502610.15-10.750.4-5.770735205.8（3.87-0.13）+4.23.74（120103）5032.52-（6+9.7283.2）2.

4、57601038（7.1-5.6）0.9-1.152.5（95195）745.42.6（3.7-2.9）+0.62452032.9（3.79-2.9）+0.62（270180）（3015）126（12-7.2）-6203.651267.2-63.21.7333.02（148.490.85）2.518.73.1425425425425423.52.86002053.61.283.09600（205）4.32（1.262.34）45018122.53.250.757.5450（1812）26.7147.2=3840（103+17）25801.621.9=3840103+1725200.85=412

5、+75053633.49.48=（412+7505）3613.1120.95=7505+4103610019.2=（750+410）5366.25.182.835（329129）15.35（5.357.2）35329129353.631.2517.378.755418+41313.79.9165801615.782.45=640+36060+4098452455（82511523）5610221（3763768）=0.48+0.16+0.52（143+42913）24=71.57-4.76-1.24396+1261819=1045.7-5.7240240154=2368.5+1.5-6.3（7

6、22510415）55=1037236362978501440120.5+0.14385616+85167.6-3.84000（16+83213）14151315815（326+9525）3772（1.2+0.6）5（723618228）284151787123217（42752475）25618156315163.6（1.2+0.5）56.51164.83.72.54.615385344.83.660.99.2833132213181335.651.7310314(23143.9)6.752.52121016311202.451.670.5140.83X3120=31202.680.536.

7、753X=18340.750.30.53.2310415+5183.6（1.20.5）557+358411123.6（1.20.5）524113015+6160.4（3.20.8）1.215167152.85（3.24.06）6.051960+(1251415)4.51.431.31.23435(7.2314)3.55.6741714(5584.5)3.60.41.25523+6310+313+2.713.6340.6218.79(4.79+335)0.49.181.73.751.53.82(7382.82)53420.910.5（5.23.5）X929=4159.41.28（1.540.31

8、）34=X+0.2538=X+0.29-643.25+412X=5518（6.14.6）0.810.415.375+5X=20383.72（54.717.5）（0.450.9）4815+11320+3144.82.74.02102712456（4.82.7）4.02525(1.8+249)4.02（4.82.7）2131.5+351235.70.712.54.865132.375158（35.70.7）（12.54.8）3.825+249+159（35.70.712.5）4.8413(1.75+720)35.7（0.712.5）4.87.42(5351.35)13410.22.50.32x+3

9、914=5.375（10.22.5）0.32x745=42710.22.5（0.32）340.6+x=1120（10.22.5）（0.32）8x=7.53234.51.431.31.235153310+44153.85.6748192563111213.6340.621045+(7.2357)9.181.737.51.5738(313+212)+31320.910.5（5.23.5）(5)1234(7.25123)2459.41.28（1.540.31）1213(814323)（6.14.6）0.80.41022937915042214(9514+338)(3581914（240120）（14

10、020）249+X=6.55（15090）20416X=2356008510X(15+0.5)=113012045716X=23420800460X+156=6252100-2153+22551314X=5716+212(103-33621)157112214800-(2000-96008)3215+4894048-(1472+328)53.75+527(488+344)(202-194)14258538294028+13672710137+2.3605(500-494)-18981130.5+2112(2886+6618)(400-346)625(0.15+423)9125-(182+352

11、2)5.25(114+3813)(154-76)(38+49)212(7.056920)3800-1369-798212(0.75+720)(104+246)(987)4.125+257257+5789189(108-99)X+2514=4.375(8645+4040)5X0.45=614(2944+864)(113-79)334(0.83+X)=1.48080-1877+18813X(2120+5.75)=715(5011-4385)+33970.25+152300-1122(21-15)2.514816(4526-25118)34+1.375(7353+927)(801-792)3141.

12、5(28+172)(24+16)61720+3.58+1320624048+63483.8149159950-286+66689(4519)86(35+1179)334(0.75+212)2500+(360-1604)32131225356164631514+159214393486418+3.8+1342444231025(1.5513)76-12315.25214+85656472814162.75+1.5314294028215.48(6352.52)14920-16804074.375+659459+558690+4752-398237+X+425=148+332864-75X(412

13、+0.75)=3602432+730(211+12)X211=2100-94+4854378(X+318)51+（2304-2042）23512+34+1124215+（4361-716）81710-38-18（247+18）27254215+（4361-869）8136-720（36018）415+561080（63-54）8012-（34-38）（528+912）5-617856-（13+310）85284138-90423+56264+318-82806917+x=23（174+209）26-900045-x=14814-（278+322）15x-16=381406+73594525.4

14、4+5.6+4.56=3168-782838+50430+5.6=796-5040（6307）12.3+7+0.7=285+（3000-372）36265+245016040421-63（58+370）（64-45）754-156120-14418+3574-56347+452-41605249+265（58+37）（64-95）236+25495（64-45）753+123178-14556+42156+25420+580-642128125+452812-700（9+3111）156+231（136+64）（65-34523）741+12385+14（14+20826）452+123（28

15、4+16）（512-820818）412+563120-36418+3523.6+23.5125*3+125*5+25*3+2556.4-46.39999*3+101*11*(101-92)22.6+25.3(23/4-3/4)*(3*6+2)12.0+22.63/749/9-4/345.6+0.1258/915/36+1/270.3+0.652125/62/930.1+0.985/4+1/40.139+0.42663/83/8656.0.1814/75/9+3/75/95/2-（3/2+4/5）0.32+1.57=6.125-2.75）-（1.25-0.875）9.25+2.25=75-18

16、.3-7.08-9.629.23+4.52=8.59-3.68-3.594.22+8.46=12.2721（7.36.6）2.45.63+1.25=5.4（0.510.17）9.36-1.59=5.4(7.266.05)5.63-5.21=（8.583.69）（3.41.8）4.65-1.15=20.9+10.5(5.2-3.5)7.65-4.19=（13.88.7）0.0348.88-2.69=1.5（100315.67.5）0.70.9=30.6（4.50.16）0.80.6=4.7+3.91(32-29.7)8.243.76=3.12（0.90.70.1）4.13.8=9.2+9.728

17、3.21.5140.78=2.40.751.252.514.60.34=（20.20.62.12）0.11.38.56=(1.50.9+3.65)2.50.80.55=8.480.80.940.04=1010.36（14.40.05）10.03=(25.3-9.7)0.38.530.53.05=10.5(5.14.4)+18.250.80.45=4.110.72（3.382.13）0.782.2=102511254.53.650.08=（6.85.4）2.750.93.250.75=(123.74)(80.3+21.3)100.1=0.87536+4.058.11.80.03=（227254.

18、68）0.5752.5=630（2.986.50.08）025.4=0.1251.8=(21.88+29.8)7.67.242.4=(8.15.4)3.685.717.217.2=(3.44+20.50.32)0.160.990.1=0.54(8.745.3)28.47.50.261.742.50.11+10.80.10.25134（1.256.4）14.882.4182.79.3(4.32.012.2)4320.12558.8（0.60.7）0.023.533.5710.47.79（0.350.6）4.5203.5203.6（1.20.5）582.340.50.811.213.70.253.

19、744.5319.8(26.81.24)3.61.25+0.320.4(90.45)(2.51.53)0.8(3.22.992.3)10.98(3.513.51)242.5(69.7283.2)1561.55.2(4.60.920.04)(1.8202)2.55.4(3.940.86)0.875+75219.281.820.769210.563.753.750.56753+692(1.50.81)0.475+752+692（37.62+20.76）0.042（37.6+0.76）0.04（17.2-4.53.6）0.3275+(752+692)(6.02+2.8)0.4-2.057.82.93

20、.27（80.5-9.840.16）10.8(71.271.20.9)0.254.90.83.921.08（3.94+34.30.2）1.20.2（4.25-4.250.8）1.79.153.921.465+12.80.47.51861.521.655.767-0.5243.8（24250.6）0.4（3.20.8）1.2（0.25+0.125）（0.750.4）5（3.2+4.06）6.05202.5487.41.34.680.9(4.84.80.5)210(0.216.70.07)0.010.8（10.40.64）0.92213.60.80.3(25.3-9.7)0.37.616.65.5

21、X1.7（4.5+1.36）1.532.8X10.50.658.8（0.60.7）0.0242(5.250.25)0.4(3.2-0.8)1.213.7+0.98+0.02+4.316.78-1.61.50.8286+199(53.73-17.49)(2.6+12.4)18.549.918.644.35220.918.63.470.53808.2（107.6）3699（98.5）（54.76）0.172101721.68.41.50.18235283528（1.1-0.78）（2.7-1.95）2.678+787.4（20.20.62.80.45436180.06(10.140.64)22.5

22、1+3.53+0.49-15.4-1.4712.451.350.6514.27-9.62-4.3821.32（6.32+8.3）=18.3+4.7-2.81-7.1927.3+73.2+72.717.5-3.56+6.4442.522.177.83120.39-87.62-12.383.8+1.37+6.2+12.638.53-2.72+3.28（15.28+28.99）+20.7217.5-3.56-6.4424.8+14.6+15.4120.39-12.38+87.625.851.750.258.53-2.72-3.282.021.0270.26）43.77-（13.77+5.9）6.5(

23、10-3.7)+2.98(6.8-6.80.55)8.54.75+8.4(9.2-6.8)0.124.80.124.84.5(0.75-0.356)+9.23（3.21.5+2.5）1.65.4+(0.63+1.290.23)3.2（1.5+2.5）1.61.465+12.80.47.56-1.64=(15.6-2.4)0.8+4.325.38+7.85-5.37=4.110.72（3.382.137.20.8-1.25=（6.85.4）2.750.96-1.193-0.43=10.25（1.283.2）6.5（4.8-1.24）=4.780.2220160.681.9+0.321.931.7

24、0.50.71.6510.15-10.750.4-5.7107.5（6.45.9）5.8（3.87-0.13）+4.23.74（2.9510.581.53）0.2532.52-（6+9.7283.2）2.54.2(6.183.03)+6.3（7.1-5.6）0.9-1.152.52.74+6.30.255.42.6（3.7-2.9）+0.622.973.8=7.050.84=126（12-7.2）-60.784.3=1.83.67=（4）1267.2-63.86.7+3.33.82/31/21/42/51.280.29-0.290.2826/139/262/31014.85612.52/91/

25、24/53/81.93+2.7+2.07+7.3105/91/64(0.25+2.5+25)0.41/22/59/109/205-0.90.2+1.80.55/93/102/72/50.783+0.75(0.55-0.15)191/21/44/51/86.43.28+4.63.28-3.283/45/74/31/20.7899+0.78238/91/271/2786.07-12.3+24.5-12.40885/62/541-（0.47+0.15）+0.0961/23/45/124/512.8+7.23-9.878/93/43/83/410-4.39+2.615/85/43/239/119.5-

26、(4.73+1.8)0.6（1.70.9）0.24+1.2528-(3.5-2.85+0.48)2.986.5（3.23.12）6.29-3.96+18.75.4（2.731.85）2.29 )1-0.98+0.4920-168040768-(6.45-5.46)3602432+7304.2+(5.75-0.06)2100-94+48547.66-5.46-0.03=51+（2304-2042）238.45-5.78-0=4215+（4361-716）817.06-4.6-0=（247+18）27253.92-1.51-0.02=36-720（36018）6.46+3.72+4.49=1080

27、（63-54）807.23-6.74-0=（528+912）5-61788.52-2.89-0.04=85284138-9042.97+2.21+4.43=264+318-8280697.92-2.04-0.01=（174+209）26-90006.04+5+0.68=814-（278+322）157.32+1.18+4.84=1406+7359451.77+7.83+9.49=3168-782838+5049.37-0.33-0.07=796-5040（6307）7.49-3.32-0.03=285+（3000-372）369.48-8.77-0=546（210-195）306.14-3.2

28、2-0.01=4/525/16+2/33/48.17+8.55+2.53=148/75/612/158.94-1.61-0.03=17/323/49/247.77-0.23-0.04=32/9+1/34.67+4.41+9.75=5/73/25+3/79.62-6.91-0.02=3/142/3+1/67.74+9.83+8.57=1/52/3+5/61.69+6.05+0.26=9/22+1/111/23.47+2.71+4.93=5/311/5+4/35.2-1.09-0.01=452/3+1/3159.2+8.12+3.79=7/19+12/195/60.49+4.35+5.36=1/4

29、+3/42/34.93-1.01-0.01=8/721/16+1/22.54+3.48+7.91=7/8+（1/8+1/9）6.48-0.66-0.06=90+4752-392.64-1.94-0=95/6+5/66.38+9.24+7.75=3/48/9-1/31.34+1.78+5.72=75/49+3/142.11+4.77+4.08=6（1/2+2/3）3.39+8.25+8.2=84/5+811/55.18+7.55+2.96=315/65/67.42-2.79-0=9/7-（2/710/21）3.07-0.91-0=920-16804076.57-2.19-0.01=690+475

30、2-3986.63-5.88-0.01=97-126+434.25+5.69+5.93=264-12552.37-1.36-0.01=8148+332864-754.86-3.65-0.01=6.93-5.8-0.09=8.09+4.14+3.21=148+332864-753.05+3.99+1.11=3602432+7303.82+6.97+2.12=2100-94+48545.1+3.13+3.65=2.42.52.76.89+2.45+8.3=51+(2304-2042)2344.5-2.29-0.02=36-720(36018)2.62+5.27+7.22=1080(63-54)80

31、(4.87.58.1)(2.42.52.7)(528+912)5-61780.1250.250.56485284138-9043.754.862.50.48264+318-8280691.350.610.350.61(174+209)26-90001.561.70.441.70.7814-(278+322)1511.727.85(2.260.46)0.10.30.50.70.9+0.11+0.13+0.15+0.970.991406+735945(5.517.36.75.53168-782838+50413.70.258796-5040(6307)32.85.67.2215+(4361-716

32、)814.62.540285+(3000-372)3612.5338546(210-195)30500.470.250160401017.3（58+370）（64-45）10.154120-14418+3542.62.777.23347+452-41605216.416.40.5（58+37）（64-95）2.184.657.824.3595（64-45）12.482.723.28178-14556+42(2502.5)4420+580-642128470.535（136+64）（65-34523）(1251.25)885+14（14+20826）77510.99.1225（284+16）（5

33、12-820818）12.42.687.32120-36418+3571.78531.785（58+37）（64-95）5.25153.751517.685.2+2.71.518.41.718.48.319.8+(3.749-0.299)2.37.65.37.63.77.68.6+15.40.41.445.6387.6381.51.20.62.4(0.450.061.5)0.150.6（6.252.50.25）2.75542.65544.3215125.10.851.258.85.6(12.58.50.85)0.8910.18.74-8.7423+7000.03255.26400.38+9.6

34、23.75.40.12532254.38（36.94+34.30.2）0.360.50.360.40.360.1（5.84-3.9）0.4+0.150.3813.41.624.61.6(2.25+27.751.5)248+146+154412（6073614）7682741265.85+1.89+2.15X27=2943790.9921.791634X=197-0.514+0.8338X=20522.6+80.53X36=853.60.4-1.25X+65=1350.750.30.5-3.2X58.3=28.725.8+X=36.4585.07（15.34.8）+5.3693.64X=2.3640（3.52.75+0.86）46X=62103725+26867585+189+215（32+36045）72812-700（9+3111）（75903314）54(247+18)2725