五下递等式计算

1、递等式计算(1)(2)(3)(4)(5)(6)(7)(8)(9)3.14X 9.9+0.3144.05X 1019.1 - 0.12579 X 1.255.1 X 0.992.5 X 7.83 X 0.454-( 3.94+6.86 ) X 0.8( 10 ) 0.56 X 40.5+0.44 X 59.5 (11) (12)(13)(14)(15)(30) 8.75 + (87.50.2)X35.4(31) 8.75 +(87.50.2X35.4)(32) (1-0.8 )X( 4-3.68 )- 0.01(33) (2.5-1 - 0.8 )X 0.8-0.8(34) 29.5 (9.5

2、+ 0.86)(35) (12.5+2.5+50)X8(36) 100 3.5 X 0.4 - 0.2(37) 15.4(38) 4.8(39) 3.7-0.5 1.2 X 0.57.5 X 8 -30X 4.53.7X4.5+3.76.27X1.5-6.278.8X0.1256.3 - 4.2999X 991992.5 X( 6.4 5.6 - 4)(16) 5.4 -( 2.7 X 4)(17) 3.68 7.4+5.19(18) 3.18 7.5+6.34(19) 9.9(20) 6.7(21) 7.5(22) 6.4(23) 0.8(24) 4.8(25) 2.5(26) 30.1X

3、1.0219.343.30.66-(2.5 - 7)X( 125X0.125)X(10.24X0.5)-1.25X1.25X3.7X3.2-(6.07+2.53 )X 0.7(27) 2.54+6.02+6.46+3.98(28) 4.5(29) 87.5(59) 32(60) 84.7(61) 4.23.23.24.50.2X35.4(7.25+0.75 X 8) - 50-0.4 X 2.5-2.6 +(2.4 0.5 X 4)(62) 23 X 96+ 92(63) 8.88 X 12.5(64) 28 X0.36+3.6X7.2(40) (25.8 8.4 - 0.4 )X 1.5(4

4、1) 12.5 X2.5X 6.4X0.5(42) 264 - 1.8 0.8 X (1.5 0.9)(43) (7.6+ 2.4 X 0.5) - (0.064 - 0.4)(44) 20 1.2 - 6-0.5(45) (8 +0.8) X12.5(46) (3.12+ 0.9) - (1 0.8) - 0.01(47) 8.1 - (2.7 X 1.5)(48) 9.09(49) 4.56(50) 17.8(51) 1.85X67.679.099.09X33.331.281.63X64056X1780.3X 17802.46.68.15(52) 2.5 X1.25X6.4X0.2(53)

5、 1.25 X 6.4X 2.5(54) 21.6 - 64.8 (48.6 2.7 X 2)(55) 3.6 X21+0.9X170.9(56) (5.6+ 4.4 - 0.2) X 0.5(57) 2.9 X9.2+8.5X2.9+2.2X2.9(58) 1800 - 2.5(65) 9.9 X 4.8+0.48(66) 231 - (11 - 4.5)(67) 45 X3.6+450X0.64(68) (0.125 X 5.6) - 0.7(69) 2.5 X(3.7+3.7+3.7+3.7)(70) 6.5 X8.93+6.5X0.07+6.5(71) 72 X3.6+720X0.64

6、(72) (8.5 0.9 X 3-0.6) - 0.05(73) 3.9 X2.8+3.9X8.23.9(74) (1.2 + 4.5 X 20- 1.8 )- 100(75) 5.6 X44+2.8X10+2.8X2(76) 0.99(77) 5.26(78) 4.8(79) 2.6(80) (3.7(81) 17.75(82) 9.5(83) 90.2(84) 16.5(85) 0.32(86) 0.5-3.6 X 1.8 - 3.3X 0.4 - 5.26 X 0.4X8.7+87X0.52X 7.3 + 0.26 X 26+ 0.26X1.2+4.3X1.2)X1.25X1.5+5.

7、25X1.523X8.49.5+9.5X2.7 (77.4 9.8) 12.6 -0.25 - 0.4 X 2X 12.5X0.125X 40X 1. 25 X 0.5 X 8(87) ( 67X 76+ 76X 58)X 8(88) 3.6 - 1.25 - 0.8 X 5(89) 8.5 +8.2X19+1.3X19(90) 0.521 - 1.25 X 8(91) 0.4 X67+0.1X42.8X4(92) 0.99(93) 0.65(94) 12.5(95) 7.5(96) 2.8(97) 37.5+1.1X1.9+1.1X7.2-1.25X(4+0.8)X2.5 +9.2X15+0

8、.3X15+ 0.2 X( 4.1 2.6 ) - 0.17.5 - (19.2 4.5 X 3.6)(98) 400.8 + 2.5 X 23 24- 0.16(99) 3.7 X2.8+3.7X2.8+3.7X4.4(100) 1.01 X 0.99(101) 6.5 - (1.3 - 16)(102) 2.5 X 12.5X0.4X 0.08(103) (0.24 X4+0.24X4)X 1.25(104) 0.6 X 67+0.1 X62.8X 6(105) 8.75 X0.2X7X0.4(141)2.4 X38+24X6.3-0.24 X 10(106) 0.6 X2.9+9X0.2

9、+8.11.8(107) 195.3 (44 X 5.5 + 4.5) - 5(108) 4.2(109) 25.1(110) 0.35(111) 15.6-(5.1 4.6) X 0.8 0.318.4 + 6.32 - 0.8 X 0.7+0.35X3.7+5.3X0.35X13.115.615.6X2.1(112) 81000- (27 X 78 +27 X 22 )(113) 0.8 X12.7+7.1X0.2X4+1.6(114) 210.5 81.4-6.32 - 0.8 X 0.7(115) 4.3 X2.4+5.7X4.3+8.1 X5.7(116) (1.9 1.9 X 0.

10、9) - (8.3 8.2)(117) 3.2 X (15.2-4 X 3.6) - 0.16 (118) (36.74.9) X1.2+1.6(119) 7.83 +65X7.83+7.83X34(120) (18.5 X 3.6+3.6 X 2.5 )- 0.18(121) 0.6(122) 13.4(123) 0.35(124) 9.85(125) 0.035X12.7+7.1X0.2X3+1.2X2.70.3X9+7.6X2.7X 1 -(2.7-2.66 ) +0.65 6.07+ 3.7+0.35X7.3+2.6X0.35(126) 2.8-2.8 X (2.8-2.8) - 5.

11、6(127) 3.001-0.25 X 0.4 - 0.25 X 0.4(128) 5.6 X0.26+0.75X5.6-0.056(129) (23.6 X 5.2+5.2 X 15.4)- 0.13(130) 0.15+(3.74-1.8 )- 0.4 X 20(131) (0.4(132) 8.08(133) 0.36(134) 398X 0.08) X 2.5X 0.25-(4 X 3.6)520 - 26 X 15(135) 2.4 X38+24X6.30.24X10(136) 0.18+ (5.8 3.8) - 0.4 X 2(137) 18.24 5.265.74(138) 38

12、.4 - 0.16 6.8 X 35+ 7.8(139) 1.5 X 2.4 - 1.8 1.8(140) (1 0.01 X 10)十 0.01(142)10-6.35-2.65X 101X 4.1-0.3 + 0.25 X 4.365X 2X 7X4X 1.03-0.8+2.2 X 1.05 X24+37.4 +37.4 X75 X0.25X3.2X( 1.24 X 7.5 0.8 - 16) X2.5X6.4X 8.9 - 3.2X2.8+2 5 X0.71+0.25(143) 12.45+78.98+7.55+0.02(144) 17.5 -(3.5-9)(145) 2.5 X( 6.

13、3-5.6 - 4)(146) 3.6 X21+0.9X170.9(147) (6.1-4.68 )X0.8-1 X0.4(148) 987 X 100.1(149) (1.6+1.6+1.6+1.6 )X 2.5(150) 999X12.5-333X0.8(151) 28.54+9.63+1.46+4.37(152) 9.32 X (7-6.56)(153) 23X4.50.5X9+78X4.5(154) 9.3 3.2X1.5(155) 8400 -0.25 -0.4(156) 5.6 X44+2.8X10+2.8(157) 10.2 X 2.4(158) 58.8-(0.6X0.7)-0

14、.02(159) 9.9 X 999+ 9.9(16)4.5 +3.23.2+4.5(161) 1.25 X 320X 25(162) 8.64 -64.8- (48.6-2.7 X2)(163) 2.5 X0.5X1.6(164) ( 20-0.2 )X( 9.5+5)(165) 489 X101489(166) 1.9 X 2.3+2.3 X9.1-2.3(167) 0.96 X 25(168) 28 X 45+ 37X 13(169) 8X25X1.25X16(170) 0.15+(3.74-1.8)-0.4 X20(171) 33 X 1.03(172) 9.9+1.1 X19+1.1

15、X72(173) 3.5 X 4.9+35X 0.3+0.35 X 21(174) 0.98 X 54(175) 0.25 X 27X 4(176) 1.42-0.48- 8X 0.6(177) 45 X 36+ 64X 45(178) 6.4 X8.9-3.2(179) 0.8 X 73- 0.8X 73(180) 1.08 X 125(181) 54 - (3.94 + 6.86) X 0.8(182) 0.24 X1.2X250(183) 8.1 X( 9 0.9 )(184) 5X6.4X2.5X1.25(185) 5.6 X91+56X9(229) 5.7X5.7+57X0.520.

16、57X9(186) 10.4-10.4 X0.28(187) 7.02(188) 99.9(189) 1.23(190) 87.(191) 9.8(192) 1.6X 37X 625(193) 0.3 X (1 X 0.5 - 1X 0.5)(194) (0.25+0.125 )-( 0.75 X 0.4)(195) 3.4 X2.8+8.2X3.43.4(196) 46 - 2.5 X 0.4 + 9.6(197) (5.1+5.1+5.1X 2)X0.25(198) 300 - (3 X 2.5 X 5)(199) 23.404-1.43+0.05(200) 100-35.4+24.6(2

17、01) 6 X2.7+7.1 X2X3+1.2(202) 3.4 - 0.25(203) 0.125 X2.3X8(204) 3.7 X4.7+6.3 X3.7-3.7(205) 140 X8X1.25X0.7(206) 5.2+4.8- 0.6 X 2-4(207) 12 + 56X 3X 4+ 6X 43X 2(208) 3.5X720+35X28(209) 85.29 (37.8+6.29) +7.8(210) 444 X 6.01 - 111(211) 9.5-8.69+4.36(212) 12.4+8.7-10.5(213) 40 X 6.7+4X 43-40(214) 5.656(

18、215) 37.4(216) 1.25(217) 0.02(218) 12.5(219) 6.4(220) 2.5(221) 0.32+0.68 X 3.5(222) 7.2 - 0.36 X( 2.99 + 7.01 )(223) 1.2 X9.9+0.12(224) 3.6 X 1.25+0.32 - 0.4(225) 1.3 + (16.9-0.87 - 0.3) X 8.5(226) 0.1 - 1+1-0.8 0.1(227) 791X 9+ 72+ 9(228) 32-(5.91.8X1.5)-0.01(230) 7.3 X 10.1 7.3 X 0.064 7.3 X 0.046

19、(231) 3.9 X 4.17+3.9 X 6.83 7.8 十 2(232) 83.224- (101 20.2) + 0.97 - 16(233) 4X6X9.1 3X8X3.44.3X2X12(234) 3.9 X5.43+2.58X3.93.9X1.01(235) 4.5X1.7+0.45X49+45X0.34(236) (3.12+ 0.9) - (1 0.4) - 0.1 (237) (12.5+12.5+12.5+12.5 X2)X0.2(238) (6.5 + 9.8 - 2.8 )X 0.5 2.93(239) 0.1 X (53.73-17.49 )-( 0.36 - 0

20、.9 )(240) 9.4+0.6 X (8.3-4.3)-(0.2 X 0.2 )(241) (9-0.4)X (6.1-4.6) X 0.8-1 - 2.5(242) 29.5 X0.1517.8X0.151.7X0.15(243) (2.56-1.07)X 5+101.5 - 12.5 X 0.9(244) 11.01+19.96 - 49.9 X 0-4.99 - 49.9(245) ( 14.5+6.25 )- 2.5 + 0.5 X 4.2(246) 6.7 X0.52+5.2X0.32+0.01X5.2(247) 37.2 -( 13.5 3.5 X 1.2 ) X 0.183(

21、248) 5.7-(0.09 + 0.1 )+ 2.4 - 0.54(249) 1.3 +(16.9 0.87 - 0.3 ) X 8.5(250) 0.8 +0.8+0.8+0.8)X0.25X1.25解方程(1)3x + 10=8x+ 6(13)10( x 5)- 6=1(2)3x + 10=8x 6(14)8x- 2=28(3)5x + 10=3x+ 16(15)8x- 3=16(4)5x +4X0.8=10(16)6x- 3=18(5)5x 4X0.8=10(17)4x- 3=18(6)8x 10=3x+ 16(18)5x- 2=1.5(7)8x+1.5X2=5(19)5x- 3=1.

22、5(8)8x1.5X2=5(20)3x+1.8X 2=5.4(9)8 (x+1.5) =20(21)3x+ 1.8=5x + 0.2(10)8 (1.5x) =4(22)5x 9=3x+ 1(11)8 (2x+1.5) =40(23)3x+ 9=5x+ 1(12)10 ( x 5)- 2=18(24)5x 9=3x 1(25) 53x 9=55x10(54)3(5x+5)=195(26)2(x 1.5)=9(55)144-x=2 ( 54+x)(27)2 (x-1.5 ) =8(56)1.5 X 2 8x=1(28)2 (x3)=7(57)58 5x = 43(29)2 (2x3) =7(58

23、)3.4x+1.28 =2.3(30) (x 3)- 3=7(59)3x+8=4x 7(31) (2x 3)- 3=7(60)5 ( 2x+ 3 ) =20(32)5x 15 3x=5(61)35 x=4( x+5)(33)5x 15 3x=20(62)5.2+0.4x=7.8(34)5x 15 8=15(63)3.6x 5.2=7.4(35)5x 158=15(64)9x+6x = 4.5(36)4x 2=10.5 x(65)10x 4X 5=0(37)5x 1.8=x0.2(66)0.86 X 27.1x=0.3(38)1.6 X 1.4 + 0.3x = 0.7x(67)0.7x+6.8

24、=15.2(39)1.8 X 1.5 0.5x = 0.4x(68)1.2 X 5-0.5x=3.5(40)3x + 2x=6(69)x-0.25x=0.375(41)4x 2.5X4=12(70)0.75x+0.6=0.36 X 5(42) (x + 1.5) - 2=9(71)0.7(3.5-x)=1.4(43)2(4.5 2x)=6(72)4.4x-5.6=10+2.4x(44)3 ( 5x 4 )= 45(73)3x+12x=18(45)3x+24=5x 12(74)5x+25=2x+67(46)3.2x-9=23(75)7(2x-5)=42(47)3(5x-4)=45(76)3(5x

25、-4)=45(48)3x+24=5x+12(77) 13x+24=25x-12(49)58-5x=43(78)0.96x 0.75x = 0.42(50) 27-x=2x+15(79)1.5 X 4+ 3.2x = 14(51)5(2x+3)=20(80)0.6(x 3)= 9(52)3(8+x )-2=18(81)4.2 + 2x= 5x(53)1.5x+2x=2.8(82)15.2-0.4x=7.8(83)8x - 2=23(112)2.4x + 1.2x = 4.32(84)7 (x+3.2 ) - 2=28(113)28.8=78-2.4x(85)3.6x-x-0.1x=0.75(11

26、4) 80- 0.5=0.4x-75.6(86)9x-4.8=3x(115) x - 6.5-8=6.5+8(116) x-7.5=86.9-x(87)0.9 -( 2.06- x ) =4.5(117) 18x-6.6=8.22+10.2x(88)(x 8.2 + 10.8) - 2 = 1.8(89)9x 8.8x 8=3.4(118) 48.6-2(23-3.6x)=9.8x(90)6x +6.85 X 4=32.2(119)5(x-1.5)=x+0.6(91)3(10.3 x) - 2=6.45(120) 4(28-1.5x)=10(92)2.4 x=0.4xX0.5(121)8.2x

27、-70=4.2x+20(93)1.8 - 2x = 1(122) 2x+1.5 X 2=8(1-x)(94)3 (8+ x )-2= 18(123)13(x+2)=5(x+7)(95)3 X 1.8 + 3x = 6(124)(12x+6)- 5=18(96) 1.5x + 2x= 2.8 + 4.9(125)0.85 X 6=5x+3.2(97) (68-x)- 3X 2= 18(126)48-4x=2x-7.2(98) 120 x- 2= 0.8(127) 15x-0.5=2.8-18x(99) 3(67.4x)=26.4(128) 1.2x+0.2=28- 2(100) 12x = 18

28、X 1.1 + 9x(129)444-x=2( 54+x )(101)16 X0.5+6x=10x(130)75-6x=4(x+5)(102)2.2(x0.6)=1.1(131)3(x+3)=6(x-11)(103)30.5x +38.5=36x(132)24(5x+5)=195(104)7x =14X1.5+4x(133) x - 2+3.915=15x(105)3.2 +6.5x=16.2(134)20.46-2(x-2)=2.2(x+1)(106) 90(x6.4)-3=18(135)42.8-(0.2x+3.5)=1.8(107)7(x +3)-2=56(136) 15x-(2x+5)

29、X 3=4.8 X 7(108)48.02-2.4x=9x-12.4(137) 4.8-2(x-2)=0.16(109)5 X1.05+0.3x=6(138)5(2x+8)-5=6(2x-7)(110) 2.5(1.6x+3)=20(139)146-5(5x-2)=80(111) 78 x-0.3=8.1(140)x+19 X 2=7x-28(141)55 - 4x=275(142)(x+2.5) X 2=19.1(143)5(x+9)=7(12-x)(144)6(x-4)=4(x+5)(175(176(177(178(179(180(181(182) ) ) ) ) )(145) 1.5(3

30、x+2.7)=18x(146) 5.6-x=17.72-4x(147) 48-2.4x=88.2-7.2x(148) 15x-4x+x=61.2(149 )4x - 3=18( 183)( 184)( 185)( 186)( 187)( 188)( 189 )( 190 )( 191 )( 192 )( 193 )( 194 )( 195 )( 196 )( 197 )( 198 )( 199 )( 200)( 201 )( 202)( 203)( 204)( 205)( 206 )( 207)( 208)( 209 )( 210)( 211 )( 212)( 213)(4x 2) - 8=20)8x - 2=5615x 27=9x + 3 8( x+ 1.5 )=20 25x 16x 32x(150 )3 ( 8 + x ) - 2= 18(151 )3