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六年级数学计算题(含简便)、解方程专项训练.doc

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1、1递等式计算(能简算的要简算)4 8 18 20 60 1694397534125097521427 6 6 ( )27 7850129876 50 1933851401534 8 18 20 6497385421092 60 6 6 75212101275( )27 50 9869818409 12 30 415612743539 50 6 873209561 17 ( )32 141643894351 ( ) ( )38 49 17 215 78 314 45 512 118 67 712 29 16 4472 + 59052325 512 + 0.257.890.4 3212.52.5

2、3.67.2+3.62.8 38 415715 37 + 24( + ) ( + + )40 75 710 58710 38 1213 14 7835110 37663 98 88 23+ 564 597 387 38 3882 48+ +21 ( + )24 79 79 57 57 722 722 3871236+ 24 ( )60 ( )169 215 215 14 15 18 23 715 78 314 + 36( + + ) + 57 38 415 715 121314 16 4737 16 35626+ 15+ 20 2449( ) ( )60 59 59 27 27 17 23 3

3、4 1124 8 18 20 1649585510922 6 6 ( )271785075214127598274 60 50 42609831504 8 18 20 193951534219 6 6 ( )2778507521427987 60 50 142610983154030 12 5341565239 50 6 87320924617 ( )32 1694138595431 16 4472 4585910122021 56 1448350 7 5 3 4321285161 17 + 37 17 101415 717 528 710 138 710 78 710 710 236 ( +

4、 ) 1449 494365100 13 425 391 23 910 1516 2021 155 2 12 1340 411 114 654872 3 9 3 2259 081 45 1 21 14 25 35 74910 23 56 12 2449( ) 126932817 2333.6 27 + 431852742325 5121 8 1 3 12 ( ) 866567 712 295 1.6 15 + 58520938 415715 3772 124735186975 63 24 48376 564 9163 28 8 0.875 329877138 49 17 150 3.25 15

5、5234215 78 314 2 120 ( )36781645 512 1185 1 18 15 3212.52.5 159475224 + 3.67.2+3.62.8 625614108 1 11 0.257.890.4 8738944 + 313 2637 1821 79 23 910 710 58710 387 1 24( + )311 45712 314 1213 1442 34 ( + + )40 928 2324 869 1651 7835110 4 42 +21 14712 914 722 72235 2 4.5 48+710 3657 57 17 85982710492314

6、15 717 528 82 13248779 793 2 3 ( )6057234 11246 2 4 + 1035265710 138 710 786 4 5 37 17 72182710 710 ( + )24 1067698738712 2598545457 2 4 36 ( + ) 107107314493 7 36 83028732081 2839535165 6 10 5165496 7 6 10(1 ) 67 21 823312858312 2 15 1 0.4917598 88 23+ 36( + + )597 387 38 38 121314 0.8 0.8 18261546

7、924336+ 24 11 3 5 215 215 231958 4 24 ( )60 2659814 154 4 9 ( )169145318 238 5 1 ( 0.4)( 0.5)741106112 9 2 25169715 78 3141- ( ) 1 1 0 1313476725 ( ) 0.32 62.410726531215985147685352468153826925314 4 38 38 58 712 710 12 54 236 6 ( ) ( ) ( + ) 103143578 1316 1316 ( 5 ) ( 0.75 ) 0.4 114395826861961052

8、0.25(1 ) ( ) 3697245449=303287x14x 321 x65x 14 14 36( ) 141877579 34 56 79( + )9+ 3.25.60.51.250% 8 = 9232x23106 54.4=40 2 ( ) x19536527x511.8 - x= 45 ( )110965x83920 12 25 452876754749)87(1 + =541518 23 651031x206983540783264- =14 7- =2 - = 5 + = 5x5232x1x3x4876)( 46571)( 93 107 82 17 36( - )3 9 -

9、1 6515 2 ( ) + 78 78 52431092783)( 105732- = 12 = = =15x109x3x1x621 572987287160926 14 + + ( - 9)1452072037516524315( + )(1- ) 31849743031( ) 36( ) 849162154157( 3.2) 1 2 -3.25=0.75 45 x23 35x17 x203x(1 ) 5 1 2 =14614534 7207 813 17 613 258)( 0932)( 6531 213 813 34 29 1245 38 814)( 1342) 】(【(1 ) =3.

10、6 0.2 -2.65=8 x63xx56x( ) +1.5 5 0.92 87631212 712 1011 9782935 1 0.80294196458432X X121 5X3 X 12 6X5 =13.4 8321721X X= 2X + = 29.10x965.0x27 4325 35)( 6437) 】(【 81241261)( 326121582)( 】)【 ( 39%5.87925.085473X=X = X X= 34X871634X6 =2 X= X = X = 2125 310 5298615 8 1 463 5X= X= X=25 415 23 910 35 710

11、1437275.48+8.73+4.52+0.27 (6.3-6.30.9)6.3)( 135681)15284(X = 4x3 9 = 29 x + x = X21 =435642 26032(1514 ) ( + ) 49 15 45 47 821 45 13 25 411 27 89 57 89 9)3(0)(+2.4=6 1.8=2.4 631.8=7.2 3175=2.4+3 = 812.6 2=8 514165(4.8-1.6+ ) 180.25+ 6.380.37+0.373.6243.026(1 ) 7 ( + ) 652977131925 = +0.5=4 413=31324

12、.5+8=27 2+4.33=14 (1 )18315 15 +15 25( ) ( + )9+25430173476913430( + ) + + + ( )( + ) 6519861532462 8 3 42.5 3 163102 47.112.5 420.329.1 x 3+ 2 13189.2447.112.5 =151532107+ + ( + ) ( )70 9+ 831453267659812(1 ) (1 ) (1 ) 4719753297 8+ 2 ( + )7296598432.40.452=0.3 6.35=4.1 2.5=0.6 53 = +1.2=3.4 X( + )

13、= 61232161828+ = 2 = 3 1.42=1.1 + = 185xx918xx321875.5 3 = 1.75 + = 72( + ) 12( + )530721444 48( + ) 5 ( + )6027 521414651= 40 = = + = 188xx326x381x72= 15 ( + )= 7 251827254301(9+ 24( + ) + + + 9432638822 30( + ) + + 2003 815254610431010 24 12 5.2 1 X = 15 X(1+ )= 250243121(1 )X = X = 10 X = 8 X = 9

14、5185834728(1+ )= 25 (1 ) = = 10 = 8x49x1x581x34 = 15 = 1( + ) 3 728649125(1 ) ( + ) 25( ) + 6597129876834 = 18 = 24 = 4 7 4 = 21x432x0x315x = 18 = 10 12(1 ) (1 ) 4 73752 ( + ) (1 ) 8 513265615296136123 3 2574 1027.35.1 3441.7 81.25( 2130.8) 700145 18.62.50.4 1.960.54 12.065.072.94 30.349.7610.34 17

15、+ 7 1 314953711 +7 +3 933-15.7-4.3 7 3 + 8 +2 325528424( - - + ) (12+ ) 7 (7 - ) 7 +( - )186320931212.065.072.94 30.349.7610.34 3 3 2574 + x = 20 + 45 = 12 6X5 =13.4 X- X=44x5125 13 3109( )( + ) 1( + )3.5 (1 ) 4 + +65432941525328314X =X =20X =12 X= 81341965( ) ( + )(1 ) 3+ + + 654392185347218X = X-0

16、.25= 4+0.7X=102 X+ X=42 472( + ) 2 + + + +213435619873283546X+ X=105 X- X=400 X-0.125X=8 X+ X=18 837 + 7 4 (9+ ) + 71651539842821X( + )= x0.375x=x + =4 X 73X1216 38 1312 621+ + 2 30( + ) + +549843658254610.365- x = (x- 4.5) = 7 x- 0.8x = 16+6 20 x 8.5= 1.534 35 236 + 5 12( + ) + +120981521345194836x

17、- x -4= 21 X X= +2.4=6 1.8=2.445 37 894 48( + ) 9+ 24( + )124156298618631.8=7.2 175=2.4+3 = 3 12.6 2=855( + )6027 5 ( )70 97534611796 = 413=31 4.5+8=27 2+4.33=1421 218+ 2 15 +15 ( + )72 72( + )73984334(1 )1 3 42.5 316310283412125 13.098.124.88 12103450075 ( ) 13 52 310 18 12 35 109+X = 2X = 3X1.42=1

18、.1 X+ =9837( )1511 37.519.52.54 55( ) 10 (4 3 )0.75215 311 14141710 5 = = = X 0.6 X =18 31537645 1825525370.4 750.394 1253916 553.72.88X + 2.58=95 X+30=80 4+ = 9 - = 35 522110199897 192431633.754X = 24 X = 4 X = 18 7X4X = 21 08371352 1364.064.0664 7.021238777.02 .684254X+ x = 20 x+ 45 = 12 = ( + )=

19、141581371025.65.62 4710.25 0.2571 4312686136.532X = 4 x x+ 45 = 12 = 134 58 56 10457816327792163)( 35 ( + )= 8x 3 5634224 + )18(405)1075(181627095x3x = 1.75 X+ = 15X = X = 18 176353 + 1( + ) 371253854839447.112.5 0.329.1 x 3+ 22113(1 ) 7 ( )( + ) 1( + )3.5659713654394513189.2 47.112.5 323 + + 18( +

20、)7127881567104956 = 2.40.452=0.3 6.35=4.1 2.5=0.6537+ 5 ( )24 ( + ) ( + ) 316244213 = +1.2=3.4 +2.4=6 1.8=2.4610753533 + ( )30 328576431211631.8=7.2 175=2.4+3 = 8312.6 2=85141657+ 5 ( )24 ) ( + ) ( + ) 2316247731 =+0.5=42 413=31 4.5+8=27513 2( + )9+ 30( + ) ( + ) 5+ 93421671263418512+4.33=14(1 )1 3

21、42.5283(1 ) 7 ( + ) 6597712952403163102 47.112.5 0.329.1 x 1825( ) + ( )( + ) + +818346543343+ 213189.2 47.112.5 413 25 ( + ) 12(1 ) (1 ) (1 ) 4565715297 =2.40.452=0.3 6.35=4.12210( )70 97 8+ 2 15 +151796537342.5=0.6 = +1.2=3.4 2X = 531221918( + )72 72( + ) ( + )9+ 30( + )98423495314236+X = 3X1.42=1

22、.1 X+ = 5.5x3x = 1.75 1 87X+ = X = 15 X( + )= X(1+ )= 2553072516124112( + ) + + 4 48( + )4983652143(1 )X = X = X = 8 X = 91581372189+ 24( + ) ( + )6027 5 25668546115X = X = 18 X = 24 X = 1843521098723(9+ ) + + + 2 98872549841X = 4 7X4X = 21 X+ x = 20 x+ 45 = 12315 151230( + ) + + 1010 24 12 5.2 1615

23、287325461102543143514.5=(5110X)3 3X2(10X)=15 (1X)3=2X X25X5=X195551311115 250.320.25 55( ) 2005 34204 5 = = = X 60% X =18 31537645 182510 (4 3 )0.75 25370.4 750.394 7417 5513.7.88X + 2.58=95 40%X+30=80 4+ = 9 - = 35 2121253916 592413356383.754x 30 6x X = 4 x+ 45 = 1234 58 56 37 13 110199897 41352 13

24、64.064.0664 3.68425= ( + )= 7816423517.021238777.02 1025.65.62 431268613 16.5428x 3 (x6) 25 45 09x243x4710.250.2571 377155176)(41352 1364.064.0664 7.021238777.02 .8X = 18 = 10 X = 4 X = 18 43523X31572311025.65.62 4710.25 0.2571 43126861316.4:6=15: : =: 3.5: =5:4.2 = = 243x108.24x52.13175715957631)(

25、831.25:5=0.75: := :6 : = : = 241610x2. + )618(4093)27(56710913: 0.3: :0.2580: : :12 : =12:3145731435433 + 1( + ) 32578189125:0.6 :4 : : : : : :2972818(1 ) 7 ( )( + ) 1( + )3.565913654345= 1.6: x:1 :2.x04.0x6970325 13.098.124.88 12103450075 ( ) 13 52 310 18 12 35 109+X = 2X = 3X1.42=1.1 X+ =8918 7( )

26、1511 37.519.52.54 1253916 215 311 5513.2.885.5x3x = 1.75 X+ = 15X = X = 2453107650955( ) 10 (4 3 )0.75 25370.4 750.39431447X4X = 21 X+ x = 20 x+ 45 = 12 57x5.3610199897 52921135684 5 = = = X 60% X =183745 1825514.5=(5110X)3 3X2(10X)=15 (1X)3=2X X25X5=X193 + + 18( + ) 712538167094956X + 2.58=95 40%X+

27、30=80 4+ = 9 - = 35 285327+ 5 ( )24 ( + ) ( + ) 3162457471513= ( + )= x 30 6:x :78163434 58 56 37 133 + ( )30 3257855312X = 4 x+ 45 = 12 = ( + )=11781647+ 5 ( )24 ) ( + ) ( + ) 3624753114 8x 3 (x6) 25356124155(32 17) (25 ) ( + )9+ 30( + )41439314213670%X + 20%X = 3.6 25% + 10X = X - 15%X = 68 =30% 5

28、X( + ) 5+ 2410.5-354939 72631871 75= 3.5: =5:4.2 = =X44x2.x108.2( - )21+ ( ) 0.253212.5 2454072 51439x- 25%x = 10 X25%X=90 =+50%=4212 .1x653216 ( 18( 15.64- +4.36- )89(332)5)977 1.6: : x:1 : 47.112.54.0x6510201( 7.52.37+250.189 60( (92)7 )5412)30958:0.6 :4 : : 0.329.1 327397x.620-( 5.17-0.38-1.62 1.

29、253.6+1.253.4+1.25 35(1-165)2 5)43.145.3+3.144.7 8302527+935 36.5-6.54.72 108( 316x : : : 3+ 2148248124184242.4-2.50.4 ( 24.5-(7.58+ ) 09573)3359 : :12 = 25521072.5(1.920.3-5.9) 67.5314-(19.376-2.4686) (1-1535) %8.674.4: 0.3: 13189.2 :0.2580: 47.112.5 14573124-4.8(2 121.43+0.5712-12 0.99+9.999+99.9

30、(56)2. )347: =12:3 2.40.452=0.3 : =:0.1 6.35=4.134827216+2046 (22725-4.68)0.11 7.75-2.4+2.25-6.6 3216071.25:5=0.75: := :6 2.5=0.6 =21435153.7-0.25(3-1.6) 98.6-29.3+11.4-30.7 5.3 %603.155231: = : = +1.2=3.4 4:6=15:3157610x2.322.651.7+1.351 (12.42.5-2 )19 (1.9-1.90.9)(17.6-17.41) 24 +765 : =: +2.4=6 3

31、.5: =5:4.2 1.8=2.42430.6255.8+ 92 126028+6352 (8152.639402 )23()1=631.8=7.2 175=2.4+3 =x108. 514x2.( 53-7( 3.799+3.754328)632.78.106)7+50%=42 413=31 4.5+8=272+4.33=141210.510.6(4.5+ ) 15.296+15.25-15.2 82 5973 8 = 8312.6 2=8 = =4162.1x605351612184 1.37128-281.37 +1.7+ +5.3 0.471+ 28+40%1325312522 = 3 1.42=1.1 + = + = x98xx87x3107515 15.8 14.2 997512127.4(x2.1)=6 (7x - 4)+3(x - 2)= 2x +6 12x8x1228 3(2x1)10=37 69 74.8 35.2 20%3.86.220%20% 816150319453x+ 7x +10 = 90 3(x - 12)+ 23 = 357 7x82x27 5x 18 = 32x28( ) 5.85 5.85 72837

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