小数四则混合运算计算题

1、(1) 0.11X1.8+8.2X 0.11(2) 2.34X99+2.34(3) 5.4+ 2.7X 0.8(4) 132X101(5) 6.25+1.25 + 0.8(6) 2.5X 16(7) 6.33X101-6.33(8) 1.56X1.7+0.44X 1.7(9) 1.8X (3.41-2.9) +0.03(10) 0.125X 32X2.5(11) 1.258X 18.5-0.258X 18.5(12) 8.48 + 0.8X0.9(13) 1.25X2.4(14) 5.85+ (1.3+0 X 6(15) 17.17- 6.8- 3.2- 6.17(16) 5.4 X (1.3

2、+2.15) +0.2(17) 8.4 + 0.6+8.4+ 0.4(18) 16.8X 10.1(19) 10.9-0.9 + 0.2+1.8(20) 1.25X3.2X0.25(21) 1.36+4.85+2.64+6.15(22) 98.5 + 2.5 + 4(23) 5.4+2.5X (3.7 2.9)(24) 0.8X (4 3.68) +0.01(25) 83.7- 12.83-0.17(26) 5.96+13X (3.2-3.12)(27) 4.32 + 2.4X1.7(28) 16.2X4.5+3.8X 4.5(29) 9.05-3.86- 3.14(30) 7.28+0.72

3、+ 0.931 4.32+5.43+6.68(32) 17.17- 6.8- 3.2(33) 5.29X9+5.29(34) 16.8X 10.1(35) 2.74X9.5+5X 0.274(36) 0.36+9.6+ 3.2(37) 3.75X25+6.25X 25(38) 25.46- 8.23- 1.76(39) 2.9+7.1X 10(40) 1.25X32X0.25(41) 15.68- (7.78-4.32) -2.32(42) 0.25X 3.2X1.25(43) 9.99X 1.01(44) 4.63X 1.4+46.3X 0.86(45) 17.5+ 0.8+12.5(46)

4、 0.9+9.9+99.9+999.9(47) 2.9X99+2.9(48) 25X 11.2X4(49) 23.25- 6.75-3.25(50) 125X 3.2X2.5(51) 3.6X 10.1(52) 5.8X2.7+0.58X73(53) 3.6+6.4X 1.8(54) (1.48+3.02) + ( 3.6 X 0.5)(55) (36.7-4.9) X 101 -31.8(56) 6.33X 101-6.33(57) 35.6- 5X1.73(58) 1.6X55.4-55.4X0.6(59) 17.68+5.2+2.7X 1.5(60) 1.08X0.8 + 0.27(61

5、) 102X 0.45(62) 22.78+1.25+ 0.8(63) 0.34X 101-0.34.(64) 0.125X 32X2.5(65) 0.8X6.3-0.8X3.8(66) 504+ 3.2X2.08(67) (20- 0.8X9) X 5.7(68) 2.4X1.5+3.6+ 1.5(69) 7.38-5.14+3.62- 2.86(70) 0.12X 1.8+8.2X0.12(71) 5.4+ 0.51 + (1.2- 1.03)(72) (8.1-5.6) X 0.9-1.05 + 0.04(73) 10.8-0.8- (0.35+0.05)(74) 8X1 + (2.3-

6、2.25)(75) 2.64X 9.9+0.264(76) 4.52+0.61+1.39+6.48(77) 4.27- (1.96- 1.73)(78) (294.4- 19.2X6) + ( 6+8)(79) 12.5X 0.76X 0.4X8X25(80) 4.98+8.02X 2.5(81) 60.8-40.8+2.5(82) 0.8X69.6X12.5(83) 4.98X99+4.9(84) 6.48+3.2 + 2.5(85) 1.2X7.6+7.6X 6.8(86) (9.4-5.8) X2.07(87) 12.54- 4.56- 3.44 - 1.54(88) (9.36X 5+

7、9.36+9.36X 2) 乂1.25(89) 7.236+ 0.18- 14.3X0.02(90) 9.6 + 0.4X0.25(91) 29.7+ (5.85 + 0.65)(92) 7.4X9.9(93) 3.84-2.7X0.64(94) 8.68-8.68+0.56X 0.5(95) 4.7X4.7+4.7+4.3X 4.7(96) 2.72+ (8.2- 6.5) 乂 0.5(97) 9.12+9.12X 9-60.2(98) 28.4+0.4 + 0.25(99) 27.36- 27.36+7.6(100) 3.25X 0.45+6.75X 0.45(101) 31.5- 24.

8、5+ 3.5(102) 7.5X 102(103) 6.3+3.7X 2.8(104) 2.15+8.73+1.27+7.85(105) 11.87- (8.2+1.87)(106) 5.42- 3.87- 1.13(107) 4.38- 1.56+0.62- 0.44(108) 0.4X270X2(109) (40+1.25) X8(110) (12.5-0.05) X8(111) 2.6X8.5+8.5X7.4(112) 9.9X6.9-6.9X 3.9(113) 5.6X99+5.6(114) 2.5X (1.9+1.9+1.9+1.9)(115) 7.2+1.25+ 8(116) 52

9、.4- (15+0.6) +1.6(117) 9.87X 99+9.87(118) 46.8+0.9+0.4(119) 5.5X 17.3+6.7X 5.5(120) 99X4.2+4.2(121) 0.25X 1.25X3.2(122) 6.4X14+15X6.4+6.4(123) (1.3+1.3X 0.125X 8) + (80-77.4)(124) 4X (25+2.5+0.25) +111(125) 6.25一(17.2-3.6X4.5)+ 0.32(126) 28.4X99+28.4(127) 0.94X2.5- 0.45(128) 4X0.8X12.5X2.5(129) 17.5

10、 + 0.25X17+13(130) 10.1X87(131) 2.3+3.19+ (22-19.8)(132) 1.25X7.2(133) 9.1 - 1.2 + 6-6.24(134) 7.3+12.8-3.8X2.3(135) (5.36+7.64) + 13X100(136) 7.575+ (5.63- 1.88) X 0.2(137) 7.5 - (5.5+1.24)(138) 0.26+15.68+9.74+2.32(139) 13.26+9.55- 3.26(140) 6.1+3.9-6.1+3.9(141) 31.7+ 0.63(保存 2 位小数)(142) 2.4X1.5+3

11、.6+1.5(143) 0.32X0.25+0.08+ 4(144) (9.6+1.48+ 3.7) +8(145) 5.8-4X (1.34- 0.14)(146) 5.4+ 0.51 + (1.2-1.03) (147)21.35- 3.25-16.75 (148)33.02- (148.4- 90.85) +2.5 (149)32X2.5X0.125 (150)18.1+ (3- 0.299- 0.23) (151)67- (2.98+0.67) (152)8X16-73.8X6 (153) (45+14) + 73+710 (154)13.7X 0.125X8(155)0.8X 13

12、- (3.12+5.28)(156)102X 0.56(157)1.53X 1.7+0.47X 1.7(158)5.18+0.73+0.82(159)0.75X 1.8+1.5(160)12.5X 7.1 X 0.8(161)6.12X99+6.12(162)8.6+ 0.86+8X0.35(163)5.6X (18.5-8.5 + 0.5)(164)0.125X4.78X80(165)2.8X3.6+1.4X2.8(166) (0.4+40) X 2.5(167)78.7- 17.7X3.6(168)18+ 0.3X (8-6.5)(169)12.7+12.5+0.5(170)91+2.6+

13、0.05(171)6.3X 3.7+6.3X 6.3(172) (3.7+1.7X 0.4) +2.5 (173)7.28+3.2+2.5 (174)0.74+0.9X 7.4 (175)7.8+ 0.125+0.8(176)37.5+ 0.3 X (1.34-0.84) (177) (2.5+27.75+ 1.5)义 1.6 (178)6.21-3.8+2.2 (179)6.03+3.7+2.97(180)17.43-6.57-2.43 (181)20.47- ( 1.47+6.8) (182)13.26+4.71+3.47+5.29 (183)22.74+8.68- 13.74 (184)

14、10+ 0.2+2.5 (185)64X 4.5+3.6X 45 (186)1.25X 3.2X0.8 (187)14.5X 102 (188)14.64+3.7X 2.8 (189)8.4+ 0.21 + 0.5 (190)0.125X 9X8X0.3 (191)4.62+ 5+0.66(192)5.78X 2.3+5.78+5.78X 6.7 (193)7.75X 20+ (3.24- 3.04) (194)1.25X 0.5X 8X0.2 (195)0.97X 9+0.97(196)5.4+ 3X ( 3.8 2.9) (197)0.4X (3.2-0.8) +0.15 (198)5.7

15、+1.9X 0.2 +7.6 (199)32.4X 6.3+32.4X 3.7 (200)18.2- 10.6X (0.9- 0.75) (201)0.25X 3.85X40 (202)1.46X 3.5+3.5X 4.54 (203)7X12.5X0.8(204)4.7X 3.6+4.7X 6.4 (205)1.45X (2.8+4.4) +2.4 (206)4.2X (6.18-3.03) +6.3 (207)15.02-6.8- ( 1.02+1.2) (208)0.6X (5- 0.68) + 1.2 (209)2.7+ 4+6.3X 0.25 (210) (6.02+2.8) +0.

16、4-2.05 (211)3.08X 3.5+6.2X 3.08+3.08X0.3(212)2.3+3.91+ (22-19.7)(213)21.6+ 64.8 - (48.6-2.7X 2)(214)93.6X3.6+1.4X 3.6 (215)0.25X 0.8X0.125X0.4 (216)2.7X1.5-2.7(217)9.08+5.45+11.92+4.55(218)1.25X 30 X 1.2X0.8 (219)0.6+0.94- 0.208 (220)4.85X1.25X8(221) (64-22.4+1.4) 乂 1.2 (222)18.3-6.25- 3.75 (223)2.8

17、X 3.6+1.4X 2.8(224)6.6+14.5- (1.7+1.8)(225)0.25X 9.87X4(226)36.7X 2.1+10.8(227)8.45- 0.45X0.1(228)0.73X 102(229)7.8X 5.6+2.3X 4.4(230)76.3X27- 76.3X 17 (231)7.05X 23.7+7.05X 76.3 (232) (7.6-5.2) -0.4+2.54X32 (233)17.68+5.2+2.7X 1.5 (234)35.6- 5X1.73(235) (1.1 -0.78) X (2.7- 1.95)(236)1.3X 0.75X4 (237)1.08+1.8X1.2(238)50.4X 1.9- 1.8 (239)0.82X0.25+1.18X0.25 (240)8.5X (2.36+2.42) +0.25 (241)3.9+ (1.3+0.6) X 6 - 3.6 (242)4.25X 6.3+3.7X 4.25 (243)205X 0.99 (244)25.6- 7.49- 2.51(245)2.5- (6.8-4.9) X 0.8(246)102X 4.5(247)3.4+ (1.2+0.5) X 5(248)8X (20- 1.25) (249)0.654+10.9X 6.5 (250)22.7X 1.25X0.8