1、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 16(37+12) 4819+52
2、19 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+339 4(2530) 4(25
3、+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)0.4 0.1528-(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 22.5+2.52 1946
4、4.81.80.936.724.259.9 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、12564 6 6、0.91
5、.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1 280 840245 2 2 85(95144024)3 58870(105202) 4 80400(430087015)5143727 27 563 681432 (135278)7 125(331) 837.4(8.67.24 6.6)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 )76641 36(913 2
6、7623) 2(93 2521)93 5071363498 4723(521504)255 3841223371 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)95712 56035 8486401612 960(15003245) 70425192( 5438)67 138254 (13125)(38) (12+24+80)50 2532125 32(25+125) 178101178 8436+6484 7599+275 83102832 98199123
7、18123 3+85123 50(344)3 25(24+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 12318123 3+85123 50(344)3 25(24+16)17899+178 7942+79+7957 7300254 81004751740 10063 3.21.68
8、 2.80.4 14 7.4 1.920.04 0.32500 0.654.35 10 5.4 420 3.5200 1.50.06 0.7515 0.40.8 40.25 0.361.54 1.0199 42035 2512 1350.5 3/4 + 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 1.60.4 4.90.7 15 612 0.870.49 1
9、740 10063 3.21.68 2.80.4 14 7.4 1.920.04 0.32500 0.654.35 10 5.4 420 3.5200 1.50.06 0.7515 0.40.8 40.25 0.361.54 1.0199 42035 2512 1350.5 3/4 + 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 1.60.4 4.90.7
10、15 612 0.870.49158+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+99999 7755(2187+755) 2214+638+286 30657381065 899+344 2357183317 357 23651086214 497299 2370+1995 3999+498 1883398 1225 7524 138254 (13125
11、)(38) (12+24+80)50 70425 2532125 32(25+125) 88125 10276 5898 178101178 8436+6484 7599+275 8310283 2 98199 12318123 3+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 16800120 301002100 32000400 49700700 124824 315015 480025 21500125 附加题: 2356( 1356 721) 1235( 1780 1665) 7527+192 5 318
12、70+13310 9999+99.99+999.9+9.999 5.41.8+2401.5 900072(1.250.78) 61-(1.25+2.50.7) (10-0.8)+9.85-20.125 32*3.25678 33-5 12+5268.32-2569 123+456-52*8 789+456-78 181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755(2187+755) 2214+638+286 306573
13、81065 138254 (13125)(38) (12+24+80)502532125 32(25+125) 178101178 8436+6484 7599+275 8310283 2 12318123 3+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 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)+
14、1017 99+999+9999+99999 7755(2187+755) 2214+638+286 30657381065 2357183317 357 23651086214 138254 (13125)(38) (12+24+80)50 2532125 32(25+125) 178101178 8436+6484 7599+275 8310283 2 12318123 3+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 2356( 1356 721) 1235( 1780 1665) 7527+192 5 3
15、1870+13310 4(2565+2528) 2.73 0.89 1.27 4.37 0.28 1.63 5.72 10 0.432 2.568 9.3 5.26 2.74 13.4( 3.45.2) 14.9( 5.24.9) 18.32 5.47 4.32 17.29 5.28 6.29 25 6.8 0.04 0.25 32 0.125 6.4 1.25 12.5 3.28 5.7 6.72 5.7 2.1 99 2.1 1.7 9.9 0.17 23 0.1 2.3 9.9 0.18 4.26 0.18 4.26 0.58 1.3 0.58 1.3 7.3 4 2.7 0.25 3.
16、75 0.5 2.75 2 5.26 0.125 2.74 8 9.5 (1.9 8) 12.8 (0.4 1.6) 930 0.6 5 63.4 2.5 0.4 (7.7 1.54) 0.7 (11.7 9.9) 0.9 6.9 4.83.1 15.89(6.755.89) 7.852.340.854.66 35.61.815.67.2 13.75(3.756.48) 47.87.45+2.55 66.868.661.34 0.2516.24 0. 2532 0.125 2 .5 (4 +0.4) (1.250.125) 8 56.59.956.5 5.411-5.4 3.834.563.8
17、35.44 7.0910.80.87.09 3.654.736.50.37 13.70.253.74 10.716.1-1.110.7 +10.7 5 3.9(1.3 5) 63.42.50.4 1.2+8.9+0.12+1.1 4(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) 0.240.5= 12) 18.2+1.1.53= 14) 0.1630= 15) 5.38+0.45+1.55= 1
18、6) 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) 0.830.1= 39) 0.35+1.45= 40) 8000.03= 0.240.5= 42
19、) 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+2401.5 900072(1.250.78) 61-(1.25+2.50.7) (10-0.8)+9.85-20.125 32*3.2567
20、8 33-5 12+5268.32-2569 123+456-52*8 789+456-78 181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755(2187+755) 2214+638+286 30657381065 138254 (13125)(38) (12+24+80)502532125 32(25+125) 178101178 8436+6484 7599+275 8310283 2 12318123 3+8512
21、3 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 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+99999 7755(2187+755) 2214+638+286 30657381065 2357183317 357 23651086214 138254 (13125)(38) (
22、12+24+80)50 2532125 32(25+125) 178101178 8436+6484 7599+275 8310283 2 12318123 3+85123 50(344)3 25(24+16) 17899+178 7942+79+7957 7300254 8100475 2356( 1356 721) 1235( 1780 1665) 7527+192 5 31870+13310 4(2565+2528) 2.73 0.89 1.27 4.37 0.28 1.63 5.72 10 0.432 2.568 9.3 5.26 2.74 13.4( 3.45.2) 14.9( 5.
23、24.9) 18.32 5.47 4.32 17.29 5.28 6.29 25 6.8 0.04 0.25 32 0.125 6.4 1.25 12.5 3.28 5.7 6.72 5.7 2.1 99 2.1 1.7 9.9 0.17 23 0.1 2.3 9.9 0.18 4.26 0.18 4.26 0.58 1.3 0.58 1.3 7.3 4 2.7 0.25 3.75 0.5 2.75 2 5.26 0.125 2.74 8 9.5 (1.9 8) 12.8 (0.4 1.6) 930 0.6 5 63.4 2.5 0.4 (7.7 1.54) 0.7 (11.7 9.9) 0.
24、9 6.9 4.83.1 15.89(6.755.89) 7.852.340.854.66 35.61.815.67.2 13.75(3.756.48) 47.87.45+2.55 66.868.661.34 0.2516.24 0. 2532 0.125 2 .5 (4 +0.4) (1.250.125) 8 56.59.956.5 5.411-5.4 3.834.563.835.44 7.0910.80.87.09 3.654.736.50.37 13.70.253.74 10.716.1-1.110.7 +10.7 5 3.9(1.3 5) 63.42.50.4 (7.7 1.4 )0.
25、7 18 ( 2+9) 57.26(5.261.5) 得分 158+262+138 375+219+381+225 50012471021 232 (181+2564 )+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755(2187+755) 2214+638+286 3065738 1065 899+344 2357183317357 23651086214 497299 2370+1995 3999+498 1883398 1225 7
26、524 138254 (13125)(38) (12+24+80)50 简便计算练习题 2 姓名 得分 70425 2532125 32(25+125) 88125 10276 5898 178101178 8436+6484 7599+275 8310283 2 98199 123181233+85 123 50(344)3 25(24+16)17899+178 7942+79+7957 7300254 8100475 16800120 301002100 32000400 21500125 49700700 124824 315015 480025 简便计算练习题 3 姓名 得分2356(1356 721) 1235(17801665) 7527+192 5 31870+13310 4(2565+2528) 第一种(300+6)x12 25x(4+8) 125x(35+8) (13+24)x8 第二种 84x101 504x25 78x102 25x204