1、一、 能簡算的要簡算131 0.8 4232803 0.4 (31.5 1 )155155431.25 0.25116 24 (15) 33 327877 5 137620.22 12 64131352359 5 1013236(2 1)( ) 9412339551 134 2711( 7 1)12( 5.458630.7 7 5 3 152 0.7 + 0.78555 1( 2 122.05 ) (42)4 2105511 23(+)36310431.25 0.75 +0.453.2(1 5 )31+ 332 1185 121.81+ 2.22524410513- 189018(0.8 99

2、+0.83 3 337714 )( 1 320.65 )1 2 5352023(+)8637(51) 3 22063372124 (+)+ 53655571(+) 246833+2 4+4424 +3 27157 15111(+)86122791+)3928 127.86.35+9.2 0.655980.37+0.63 5.987.6513 1 3.09)10133264 5.67+ 0.36 5671+11+14.852323240 +450 1555747 +511 5 1133333.6+ 6.15 3311631120( 3 11)452575 16.31 2.31 7751.25 2

3、.5 328 5( 515 6 9342( 1 ) 75 + 1 ) 8+ 198 27 27342 3 12 + 3 1)243 4 620345+1801214+2745(3+3) 58 4 5 933240 +4501825 3+ ( )36 42.253.5 9.9 +0.3510.212142(4.46+0.14)0.7538(4.2 0.4) 0.553( 51+31) 925 5 3 9145 2 7 1 69 13 13201.3 7.3 6320.130.8 3.6 0.8 0.67 3 23 ( + 12 8 24 244.87 1 (2.12.09)56819817101

4、115.8 7 +14.218 18318.5+0.75 5+6.5 143.6 2.8+7.4 7.21+1) 3 172 3 518183.25 547.773+952+36:4.8=37+5941+)72 解方程 4x21x x+2=145431x x+1=1352254.8 + 77.5 0.489 1 2 49 1( 2+4) 20 2 5 51(1.75+ 1 )50%44 3 5 + 75%9 4 921+)932 1 12 112) 13.68.8339171+10 15 12 60 11 9.8+9.25 4544 ( 4 0.6)5 6.75+9.2 0.25 7 +3 4

5、41)98918711 ) 9 27 36895 3 + 5 1837+( 4 1691 23+ +23 17 235 5 1+( )6 8 30.25)689)9 35 5 + 5 1018 187+7.7+27.7(0.25+80%60%) 99+99 80%575 ) (1.75 7)88 1218 12 17170.251.25 132x1.2 ) =1.5x+0.93542:x=5714： 5=4:851x x645:x2=520 92 :4=x: 1329 8(卄+)!) X0 00 gJILX (99 0+X L)1 * (門 L 寸Ln卜d+JIX 卜b+)lx 卜bg g 6

6、 7 1+1 X I) IT CXIeL ol gg CL CL +00 CXI9 卜寸 9CXIL1+ ICXIe* gCXIox gcxl l(X9L5I) *寸d+州CXIL+ex(&OL+L)g l g g l養(yǎng) Xze+0XP 8.OXEJlex 9L.0+寸OJICX g0寸lxll*-l+(M遲w呂M遲揺)M云 ws0LI -XH00HXS.0I X 、寸LH&oex卜+XCXIL9L 0I Hx+x9FPW寸 X 寸CDHe*9 C 寸 Hx +x I9CXI.8H96H9 L X9 goxJIHX寸 0HXCXI9 X00.0jrlHX -JIHxcbXCXI寸0+xo5C

7、H&9C90CXIU 寸CXIHxgXJI+9OH寸LXI9L x6寸 HX-IXJI、寸CXIH、CXI+XCXI9.9HX寸+、oxe7.6 35%+6.50.761 1 1 1+ + +2 6 12 20415 14 )72 8 5 +7 9 7821852119281321.7912( 15.7+2 ) 333(79975954.8 27141.250.8 0.4 0.6817.6+36.1 80%+2.63 12.56.9610.1 0.6962.75 0.72+ 7250.25 0.39 0.42.7563.756.7 3.25+13.3 75%四、 解方程15X x=6 126.

8、5 1010.1841518+3 33 3.5+13.75 ) + 1302x=1.8640%x =283.236742.68 =x:129232x=351 (x+9)=5 x375%3x=2.17( 2 )8.79545 154125%0.25+6032 1.6+1.6 67+1.62015131007( 567.11x230.375 )3 0.1258 116x+1=14220%x=1211=x:32x=5.8:2.94.5998.79 1.25 0.75+0.4510.18.6 0.86131 ( + ) 5 101 1 1(1 + )2 3 61 1 2 11 ( 1+2) 1 5 5

9、 3 1311.8 +2.225%44.2 1.5 1.560%1218.092.598+8.0921.9+1.9+1.9+1.9 )1)644.8325+ ) 17 1917 193251.25 3249 4 1.56+0.17 2.4419 +5143 430.651016.7 3.25+3.3 0.755.2117 1 375199+999.9243 5 3 5442 2 2 2 1 + 11 13 13 15 15 17 17 19 19123 4 6 12141414(2142.3)( 14 7 6 7)15 15283.4 1.8+7.6 2.212.5 3225%4.5 99+4

10、.5471511) 36311467.8 6.35+2.2 0.6583 947 0.4+13116 14)633613 5 1 + 1 3 3 5 5 71 0.8+ 13 13+7412+492+17 195 +80%51351( + ) 21 1921 1948( 1+7 5)3 8 61 1 1+ +1 3 3 5 9 111.8 1 +2.225%436( 1+1942598+1)2131+3)4896971.25 400.86.7 6.7+6.7 2.1+6.7 1.255555251(+)2739273923332( 1 1)5.58 +5.42744550.7599+ 0.75

11、86.67( 14.67+15.3)4 +9 4 +99 4 +999 4 +9999 425321251111+3445566721111 ()332360.65 2010.271 7 50%2 2 124 2 2 157.8 14.2515.75 + 5 7 5 71 1 11( 1 + )2 3 6122009 2007 18.5( 8.5+9.3 )20085572 ( )+10 12.18 (3.18 4.23 )9 120.25 50.40.8412.5 2.55155313 3.67+6 0.33 1005 42( ) 45 ( ) 266675291 36 ( + ) 857

12、1.9 8.57 8085.722 451 1 1 1 +24320.125 0.5 0.251515103.62 5.389CXIL C 寸 0L X* (+-!)卜 LCXILZ.L XCXIL X ( 7T+ 7T )OCXIgJ)金0寸寸、0 X C.6C+9CXIX卜+XCXIH (CXIX) X9 寸99hlx+xCXIH寸 L x&o 寸Hxeo寸lcxihxxjix&g卜x&CXIe8.9godLHX&gCXI6 60 X T6XgCXId&099L9CXIUX&9CXIgOHXgCXI寸 ZXH-I寸H(L xgd)*80sox寸寸上(&og XJ 1+-IOL9.0+ &C

13、XI+&09X9 卜JI+ (IO8) rlOLgxh-i9 6 67+門 %O0GCXILgLHX+x 寸bCXI.6LHX&0CXI1+ I00.0 X9.0OQO 0CXIHX8XCXIL 8 C 6 I yhx - I0HXS.0IXO9CXIHX6X9L 8+ 1182卜lx 8l 1x5I9 9 9 9 0C OCXICXIL 9CXI+ 1+ I8.5 0.9+8.5 0.128.92.55+1.1 7.453.8 1.01939 3 )(1.6 0.4 )0.444 4 25 3.75137.09 98+7.092493.64 4+4.360.25113 27 1 3.75 1

14、9.7+3 + 27 +6.6254410 818.2511.8 11.8 17.257.5 4.2 (1 1 ) 162134 12474948 (60%+2 ) 1.7510 73897 37.5%+104 0.375258134.5 ( 37.5 )3 97251 11121 + 1 )( 2+11 )2 3357+7611 15 15 1115.95 (5.95 10)553 4.25849615( 1+5)3 8 3 80.39+3.25 3.97 2 (1 7 )1.25115103.8 9.9+0.380.6(7+71)656.9626374( 33)4531 99482952.

15、6 1.83 18.1767.539.8 43+39.838+3981.98.76396 34 ( 17614)3.85 0.00827 (3.83+6.17)( 19.55+6.96 )151 5.2+4.8 55 165.29 2.71+1.243312 3 20% 3 540.2553314526120.912.68 ( 2.68 4.5 )1.015.2 5.2 0.01333( )7745.6 5.6 0.7 ) 22.40.5 1.25 40.841241)27253 5+5 3766715.283.99 9.014 +94 +994 +9994 +9999 45 5 5 5 50

16、.53 22+5.3 7.81 2 3( 1+2 3)242 3 44.8799+4.874357521+9595 16322 1 65 + 5 7 7280.25 1.25 0.44.87 ( 2.98+0.87 )2579(4 7 )23164 +4 111814)2 1039111 34 111 489.3 43+0.578930 解方程或比例 6 9 0.2511 22972% 95434 +3.52+2 3 +5.487712.5 0.081.7+x=24.510=2.53.563x=11 258 x 1 =9694115x x=236164 x 3 =12581125%x=18x

17、10x30%x=843(x+2.1 )=10.50.5x 0.8=1033 x+8=35548:x= :105 113 :x=4: 445631 :x=2:211 x 12=404x:28%=14 :0.70.8 3x=153 2x = x64 70.5x0.2=50840.5(x+0.8)=827.2 x=6.8x:x x 1350.25 42x=0.8x:10%=3:20%7.846 3x=3.621 1x =134 124x8=125x 1 x 110: x=2 :24x=33+13x3:4=x:1.28x4=1.6(1 20%)x=2.41.2 0.4x=121.5x+20%x=5.957(x 1.2