小升初計算題精選

1、一、能簡算的要簡算1342113 X 0.8 4 X 2+ 3 X 80%1551531+ 0.4 -( 3 1.5 X 丄)31.25 X 0.25 -丄32+ 3377 5_2 127_130.2+衛(wèi)1336 X (2 2 13 + )94124122 X匹+39525)15x5.4 10.65)0.7X-X 0.7 + 0.75(2 2.05 )1072051(5 3)X 3十(11+2 )X -36310(2+ i )X 543 1.25 0.75 +0.4-)X 24(5+3525313“( 1 8 )+ 35 X 2i213 +2+4 4 +37157151.8 X 1 + 2.2

2、 X 25%2441 +61)8 6 124105X 13 - 1890 - 18(.330.8 X 99+0.8337.86.35+9.2 0.65775. 98X 0.37+0.63 X 5.987.65X 1 .1-(3 1 3.09 )1020 X64 X 5.67+ 0.36 X 567丄)X 246575 X 16.31 2.31 - 775(5 +2719271.25 X 2.5 X 3211114.85+ +2323X 33 3.6+ 6.15 X 3355815240 +4501157+1172116(31314+2727342X( 1 7203 X 45+180 - 123

3、2 X (5 39 2)寧 4753155 亠(3+5)x 532X 40 +450 - 182.25X 4.8 + 77.5 X 0.482+(6 -；)-亠338912 4r 21 X 42 (4.46+0.14)0.75 寧(1+1)寧- x( 2+4)2025 53.5 X 9.9 +0.3510.21(1.75+ 1 )- 50%438- (4.2 0.4) X 0.5(-+193丄+Z 丄)寧丄10151260613149 213 1119X 9.8+9.25X458X 4 - ( 4 0.6)56.75+9.2 0.257+- 23)12 824X 247+3 x44.87 X

4、1 十(2.1 2.09)11-(丄)X 9 X 62736568198171210338 ( 8)993515.8 +14.2 1118 181 13 X9X( - + -)3 955 5X 3 + 5 X + 丄 X 101818 18201.3 X 7.3 63 X 20.133.60.8 X 3.6 0.8 X 0.68.83 7X 3+( 0.25)4 163.6 2.8+7.4 7.28172317231+1)3 1751818-5+()3.25 - 5-47.7X 7+7.7+2 X 7.7(0.25+5) -(1.75 8127 3 3 71212+ +(80 60% X 99

5、+99X 80%X 18 9 5 5 917172/ 41 、70.25+(+ )X37225X 1.25 -132二、 解方程46:4.8= -3x(x1.2 ) =1.5x+0.914:8=4:54326431 / “42:x=3511 5xx+1=13:x52573209-x x+2=14- :4=x: 1-x -x2=53X 0.7+4x=6.53x-1.4=3.6+ -x1:x=5x:0.7543361+-)71543:8=x:3x+3 X 1.5=9943=4x:7.5:x=24:123x6=8.252 x 1 x=634 81 21x+ x=43 61 :11112 ,=x:xX

6、 =44 '1620323115=:x320 92x+2.7=24.70.6:36%=4 :x4.2x- 3=6.4 X 45X 8x=3.69=x:155x-1 =763213: 1x-x=4.96:x=8x3X 9=37354' 4x 1624小4x= :6:0.1=x:361.543791 131丄 X 0.5+ Ax=330.362 24X 52x=0.418 = 7.2x 814X+丄 x=12x+7 X 30%=14.7 x 0.85x=30315z+co I9| 2+CXICD<N| COg|CXIT+I'rxi I col1寸co|寸17 | LO

7、-1卜Tl| 9-L1_ 1廠191' 11Oil61卜1 00g1CXICXIXXco I ioz1CXI9 COl| IOTLD | 00co寸 g寸.0+0019L 9 9L養(yǎng) Xze+0XP 8.OX 四 LL (5 x gCXI寸)gl<G L9LCXIL+寸 Lg 寸e£>x(&OL+L)Mex 9L.0+寸OMCX g°0寸CXICO821X7.6 X 35%+6.5X 0.76(15 14X 4 )71111+ + +2 6 12 20521 192-8X 1321.7(15.7+2 1 ) 3 233<9 - 7 亠 9)

8、x 141.25X 17.6+36.1 - 80%+2.63X 12.5597X 554.80.8 X 0.4 0.686.969X 10.1 0.6962.75 X 0.72+ 725X 2.751 8+3 335 0.375 )60.25 X 0.39 X 0.463.75(3.5+13.75 )7.1- 0.125 - 86.7 3.25+13.3 75%1 1+ -15303.216四、解方程65x=1210.12x=1.86x 1+42=16.5= 10x =2.68440%x =2820%x=12216238=x:1291 (x+9)=5 x311=x:32737“ 452、8(X

9、 )-8.7954515X 2x=8 X 75% 3x=2.1x4.5=5.829X 99X 8.7941 X 25%0.25+60 X43 1.25 0.75+0.4532 X 1.6+1.6 X 67+1.620151310.1 X 8.6 0.8610071 ( X + -5 108.09X 98+8.09 X 221122.5X( 1.9+1.9+1.9+1.9 )丄寧(1 + 2) X丄5531325+2)x 17 X 19171911.8 X 丄+2.2 X 25%4(3亠349425 X 1.25 X 32184.2 - 1.5 1.5 X 60%4.831.56+0.17 2.

10、449. 9+99X 9.924X K+51X I9430.65 X10143206.7 3.25+3.3 0.755.22 2 2 2 1 + + + +11 13 13 15 15 17 17 19 1914 628(14 X 7 6 X 7) - 283.41.8+7.6 2.215 151512.5 X 32X 25%1(1 1:)X 36234.5 X 99+4.54711X467.8 6.35+2.2 0.658r 371X()941647630.4+1313536 X( 1 +2 + 1 )492(1 3 X 2 ) + ( 1 +3 )454898x96975 1+) X 21

11、X 196.72119X 6.7+6.7 X 2.1+6.7 X 1.248X ( 1 +7 5)3861 1 1+ + +1 3 3 59 1155555/ 25、1+ )X 27-3927394+9 4 +99 4 +999 4 +9999 4111 1 + + + +1 33 55 717 197 X 0.8+ 1136 X ( 1 + 1 1 )9 46 X4 +80%<525X 1.25 X 40X 0.81313513221 °,2 /33321.8 X +2.2 X 25%X (仆-I)5.58+5.42 -4744550.75X 99+ 0.7586.67( 1

12、4.67+15.3)25 X 32 X 12557.814.2515.751+1 )3 61127177 X 1 十 7 50%11+ + +3445566720092007200818.5( 8.5+9.3 )245 13 5 3.67+6 1 0.336 631十(-丄)X 2522111X( )3231十 X 365572X( 5 5 )912+10 12.18 (3.18 4.23)0.65 X 2010.2X 0.25 X 5X 0.40.8X4X 12.5 X2.55 51005-42 X (- 5)456 791 369 -(丄 + 3 )X 6857X 1.9 8.57 X 8

13、085.72 2 451 1+ + 612X 2432 X 0.125 X 0.5 X 0.25141414 ( 214 2.3 )15 1510 3.62 5.381+17.8X 3.3+7.8 X 7.7 7.826 122030 42565 x 6三-5 x 6295951588 154x 25%x=18.75解方程3 (x 5) =8.43x1 2x= 2326x-1 =2513X: 5 =0.07:-8.2 -x=47 25+ =9x:15=54x 5x=21533 14 10， 206 X 9 1x=26.82=8:x+ 3x=358(1+20%)寧 x =0.46.8232%x=

14、553x+4X =58x:2.4=5:75%xX 0.85x=35x 20%x=19.27 5-:25%二:x8 67 :x=0.4:90.4x+x=153.83721一 xx=2.13511 28丄一(1丄+2)44 53.93X 2.6+39.3 X 0.7418 120%X 丄 +20%X 7 8+丄99 560%4 140%X(-丄)5 204 5210(8.8 ) +5 77(H+U )1217X12X 1712x8x=2012-(0.5x 1)=440%x14=720 8 0 61小，31 / _1.25:=x:2.4x+ x 1=65x 0.364461 . 1 1 :x=1:2

15、4x2.5x=0.758X(x 2) =2x+755442x:=4:7x25%x=12.6732875X 60%+2左+0.60.2551 11(I )* X 104 312116111)2叮0+ 2 X 50%)-54.4 X 0.257.25X 9.9+72.5%11X (+1)十58.5 X 0.9+8.5X 0.128.92.55+1.17.453.8 X 1.01)X (1.6 - 0.4 )0.4X 113X 25 X 3.757.09 X 98+7.09 X 2499.7+27 卜自+6.62510 83.64 - 4+4.36 X 0.2518.25X 11.8 11.8 X

16、17.2517.5 - 4.2 X( 1 -)61111(2-+1 )寧(2+口 )2 33134X 十三X 1247X §151511-5 x 3114 98 4 (60%+2三)5 104X -十 1.7715.95(5.95 10)3035 53 * 5 4.2584897 37.5%+104X 0.375258321 34.5 - ( 3-7.5 ) X 3 972 551515、XXr+ )96383852.6 1.83 18.1767.5X 0.39+3.25 X 3.91.25X 3.85 X 0.0083.8 X 9.9+0.380.6X 27 (3.83+6.17)

17、56.96(19.55+6.96 )4 ( 3 -1) X29531X 99丄 X 5.2+4.851639.8 X 43+39.8 X 38+398X 1.98.765.29 2.71+1.2493710.25X 12X 0.9364 (石4)12.68 ( 2.68 4.5 )1.01X 5.2 5.2 X 0.01343 -( 7 - 3)3.99 9.01(5.6 5.6 X 0.7 ) - 22.40.5 X 1.25 X 4X 0.8-(-)X -15.2877254+94 +994+9994 +99994555554.87X 99+4.870.53 X 22+5.3 X 7.87

18、 X 5 亠 21516323) X 2444.87 (2.98+0.87 )8X 0.25 X 1.25 X 0.425X - x( 18X 14)79_6110.25222十10399(4 - 7)XX 72滄311c, 164X+X 344111144 +3.52+2 3 +5.487789.3 X 43+0.57 X 8930X 12.5 X 0.08解方程或比例1.7+x=24.5x-10=2.53.5X 63X=1128118xX 1 =96X 194163=12101 15x x=2 36125%x=181 :x=2:x30%x=8433x+8=355x 12=403 (x+2.1 ) =10.548x:28%=1:x=:10:0.751140.5x 寧 0.8=103 4:x=4:5X 0.8 3x=14 5368=4x x - 15 32x= x6 470.5x-0.2=500.5(x+0.8)=827.2寧 x=6.8x:3 54=60.25 X 42x=0.8x:10%=3:20%7.83x=3.6211x寧 =134 1210: x=2：-5x = 372 =084x - 8=1252.1X (18 x)=4.2 x0.75x=3038x -1 x 13-x( 1 80% x=4.95424x=33+13x3