小学数学简便运算练习题总结doc.docx

1、小学数学简便运算练习题总结doc小学数学简便运算练习题 (138)125 20(175) 14205 27638+27662 25(4032)(57)80 8141256 162554 25134 3125 2345 40735 25645 3475-1999 2843-598 (86)125 4825125 259+468+741+532 3625 (15+25)2 3700-2185-815 1225 2825 125(8+4) 25(8+40) 12524 2524 162519 32125 44250 12556 201253 724-298 2516 752524 345+497 1

2、6(37+12) 4819+5219 64125 2548 (25+7)4 32+144+68+56 847-29747253 60(15+500) 248+198 435+1999 8(125+9) 4618+5418 (400+16)5 1704+804 10356 1368+1332 (2+4)15 5(20+6) 823+827 96+49 629+671 5116+584 (125+12)8 29317+31771 9914 7599+75 10236 4980+80 230-216-184 48125 (2530)4 1881252 125(86) 2544 420755 679+

3、339 4(2530) 4(25+150+75) 1215+1235 3225 135+415+265 5(18+20) 5298 999+99 365+365 3899+38 5(1820) 31128-2831 (25+250)4 (125125)8 4610130.814(9.851.07) 60(9.528.9)0.182.8810.430.243.5 20(2.441.8)0.40.1528-(3.4+1.252.4) 2.557.1+2.457.1 7779+111130.815.5-(3.21+5.79)（31.8+3.24）5 31.54(6+3)0.64257.8+2.2 2

4、2.5+2.52 19464.81.80.936.724.259.9 51807056 242.42.50.8(4121+2389)7 67115-974 46912+1492405(3213-3189) 3.416（0.01635） 0.8(106.76)1.219.46.12.3 5.670.2-0.62 18.10.92+3.930.0430.24+0.875 0.40.70.25 0.75102 100-56.230.78+5.436+1 4.070.86+9.12.51、89+124+11+26+48 2 2、875-147-23325125408 4 4、1478+8535、125

5、64 6 6、0.91.080.920.1用简便方法计算89+124+11+26+48 875-147-23 1478+853 12564计算下面各题1280840245 2 285(95144024)358870(105202) 480400(430087015)514372727563 681432(135278)7125(331) 837.4(8.67.246.6)计算：（1）156107-7729（2）37.85-（7.85+6.4）（3）2875+96990318（4）1554（72-58）3脱式计算2800 100789 （947599）7664136(91327623) 2(93

6、2521)935071363498 4723(521504)2553841223371 6(3921)(3966)（1）156(17.7-7.2)3（2）37.85-（7.85+6.4） 30（3）28(5+969.9318)（4）81（72-54）9571256035 8486401612 960（15003245）70425192（5438）67 138254 (13125)(38) (12+24+80)50 2532125 32(25+125) 178101178 8436+6484 7599+275 83102832 98199123181233+85123 50(344)3 25（2

7、4+16）17899+1787942+79+7957 7300254 8100475 7527+192 531870+13310 4(2565+2528) 138254 (13125)(38)(12+24+80)50 2532125 32(25+125) 10276 5898178101178 8436+6484 7599+275 8310283298199 123181233+85123 50(344)3 25（24+16）17899+178 7942+79+7957 7300254 81004751740 10063 3.21.68 2.80.4147.4 1.920.04 0.32500

8、 0.654.35105.4 420 3.5200 1.50.060.7515 0.40.8 40.25 0.361.541.0199 42035 2512 1350.53/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.5117 32.819 5.21.3 1.60.44.90.7 15 612 0.870.491740 10063 3.21.68 2.80.4147.4 1.920.04 0.

9、32500 0.654.35105.4 420 3.5200 1.50.060.7515 0.40.8 40.25 0.361.541.0199 42035 2512 1350.53/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.5117 32.819 5.21.3 1.60.44.90.7 15 612 0.870.49158+262+138375+219+381+22550012471021

10、232（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+498188339812257524138254(13125)(38)(12+24+80)5070425253212532(25+125)881251027658981781011788436+64847599

11、+2758310283298199123181233+8512350(344)325（24+16）17899+1787942+79+79577300254810047516800120301002100320004004970070012482431501548002521500125附加题：2356（1356721）1235（17801665）7527+192 531870+133109999+99.99+999.9+9.999 5.41.8+2401.5900072(1.250.78)61-(1.25+2.50.7)(10-0.8)+9.85-20.12532*3.2567833-512+

12、5268.32-2569123+456-52*8789+456-78181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065138254(13125)(38)(12+24+80)50253212532(25+125)1781011788436+64847599+27583102832123181233+8512350(344)325（24+16）17899+1787942+

13、79+795773002548100475158+262+138375+219+381+22550012471021232（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065235718331735723651086214138254(13125)(38)(12+24+80)50253212532(25+125)1781011788436+64847599+27583

14、102832123181233+8512350(344)325（24+16）17899+1787942+79+7957730025481004752356（1356721）1235（17801665）7527+192 531870+133104(2565+2528)2.73 0.89 1.274.37 0.28 1.63 5.7210 0.432 2.5689.3 5.26 2.7413.4（3.45.2）14.9（5.24.9）18.32 5.47 4.3217.29 5.28 6.2925 6.8 0.040.25 32 0.1256.4 1.25 12.53.28 5.7 6.72 5.

15、72.1 99 2.11.7 9.9 0.1723 0.1 2.3 9.90.18 4.26 0.18 4.260.58 1.3 0.58 1.37.3 4 2.7 0.253.75 0.5 2.75 25.26 0.125 2.74 89.5 （1.9 8）12.8 （0.4 1.6）930 0.6 563.4 2.5 0.4（7.7 1.54） 0.7（11.7 9.9） 0.96.94.83.115.89(6.755.89)7.852.340.854.6635.61.815.67.213.75(3.756.48)47.87.45+2.5566.868.661.340.2516.240.

16、2532 0.1252 .5 (4 +0.4)(1.250.125)856.59.956.55.411-5.43.834.563.835.447.0910.80.87.093.654.736.50.3713.70.253.7410.716.1-1.110.7 +10.7 53.9（1.35）63.42.50.41.2+8.9+0.12+1.14(2565+2528)5.7-1.8= 2) 9984= 3) 1.024= 4) 7.34-4=0.450.15= 6) 8000.03= 7) 3.27-1.27+4.9= 8) 1125=0.1450= 10) 0.810.27= 11) 0.24

17、0.5= 12) 18.2+1.1.53= 14) 0.1630= 15) 5.38+0.45+1.55= 16) 0.560.8=3.60.09= 18) 8000.03= 19) 2000.16= 20) 279300=0.560.07= 22) 1.53= 23) 0.423= 24) 46.7-3.8=5.213= 26) 7.34-4= 27) 4.80.3= 28) 0.65100=5.7-1.8= 30) 4.30.5= 31) 2000.16= 32) 0.830.1=1.62= 34) 5.4400= 35) 0.1450= 36) 10-4.18= 80.01400= 38

18、) 0.830.1= 39) 0.35+1.45= 40) 8000.03=0.240.5= 42) 1.54+0.7= 43) 2.4+8.06= 44) 3.14+1.36=0.65100= 46) 1.62= 47) 9.60.8= 48) 2.40.8=2.793= 50) 7-0.23= 51) 1.50.5= 52) 0.420.70.6=600.8= 54) 73.5= 55) 3.27-1.27+4.9= 56) 81.03=0.854= 46) 4.5+6.3= 47) 0.71.2= 48) 2.50.4=5.41.8+2401.5900072(1.250.78)61-(1

19、.25+2.50.7)(10-0.8)+9.85-20.12532*3.2567833-512+5268.32-2569123+456-52*8789+456-78181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065138254(13125)(38)(12+24+80)50253212532(25+125)1781011788436+64847599+275831028

20、32123181233+8512350(344)325（24+16）17899+1787942+79+795773002548100475158+262+138375+219+381+22550012471021232（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065235718331735723651086214138254(13125)(38)(12+24+80

21、)50253212532(25+125)1781011788436+64847599+27583102832123181233+8512350(344)325（24+16）17899+1787942+79+7957730025481004752356（1356721）1235（17801665）7527+192 531870+133104(2565+2528)2.73 0.89 1.274.37 0.28 1.63 5.7210 0.432 2.5689.3 5.26 2.7413.4（3.45.2）14.9（5.24.9）18.32 5.47 4.3217.29 5.28 6.2925 6.

22、8 0.040.25 32 0.1256.4 1.25 12.53.28 5.7 6.72 5.72.1 99 2.11.7 9.9 0.1723 0.1 2.3 9.90.18 4.26 0.18 4.260.58 1.3 0.58 1.37.3 4 2.7 0.253.75 0.5 2.75 25.26 0.125 2.74 89.5 （1.9 8）12.8 （0.4 1.6）930 0.6 563.4 2.5 0.4（7.7 1.54） 0.7（11.7 9.9） 0.96.94.83.115.89(6.755.89)7.852.340.854.6635.61.815.67.213.75

23、(3.756.48)47.87.45+2.5566.868.661.340.2516.240. 2532 0.1252 .5 (4 +0.4)(1.250.125)856.59.956.55.411-5.43.834.563.835.447.0910.80.87.093.654.736.50.3713.70.253.7410.716.1-1.110.7 +10.7 53.9（1.35）63.42.50.4（7.71.4）0.718 （2+9）57.26(5.261.5) 得分158+262+138 375+219+381+225 50012471021232（181+2564）+2719 378+44+114+242+222 276+228+353+219(375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+999997755(2187+755) 2214+638+286 30657381065899+344 2357183317357 23651086214497299 2370+1995 3999+4981883398 1225 7524138254 (13125)(38)