小数四则混合运算专项练习题(能简便的要简便)
(12) 8.48 * 0.8 X 0.9
(24)
0.8 X( 4 - 3.68 )* 0.01
(7) (8)
(9) (10) (11)
小数混合运算专项练习 276题（能简便的要简便运算）
0.11 X 1.8+8.2 X 0.11 2.34 X 99+2.34 5.4 - 2.7 X 0.8 132X 101
6.25 - 1.25 - 0.8 2.5 X 16. 6.33 X 101 - 6.33 1.56 X 1.7+0.44 X 1.7 1.8 X [ ( 3.41 - 2.9 )* 0.03] 0.125 X 32X 2.5 . 1.258 X 18.5 - 0.258 X 18.5 (13) (14) (15) (16) (17) (18)
(19) (20)
(21) (22) (23) 1.25 X 2.4
5.85 *( 1.3+0.5 )X
6.
17.17 - 6.8 - 3.2 - 6.17
5.4 X [ (1.3+2.15 )- 0.2]
8.4 * 0.6+8.4 * 0.4
16.8 X 10.1
10.9 - 0.9 * 0.2+1.8
1.25 X 3.2 X
0.25 .
1.36+4.85+
2.64+6.15
98.5 * 2.5 * 4
5.4 * [2.5 X( 3.7 - 2.9 )]
(25) 83.7 - 12.83 - 0.17 (38) 25.46 — 8.23 -
1.76
(26) 5.96+13 X( 3.2 - 3.12 ) (39) 2.9+7.1 X 10
(27) 4.32 - 2.4 X 1.7 ; (40) 1.25 X 32 X
0.25.
(28) 16.2 X 4.5+3.8 X 4.5 ; (41) 15.68-( 7.78 - 4.32)- 2.32
(29) 9.05 - 3.86 - 3.14 ; (42) 0.25 X 3.2X 1.25
(30) 7.28+0.72 - 0.9 (43) 9.99 X
1.01
(31) 4.32+5.43+6.68 (44) 4.63 X 1.4+46.3 X 0.86
(32) 17.17 - 6.8- 3.2 (45) 17.5 - 0.8- 12.5
(33) 5.29X 9+5.29 (46) 0.9+9.9+99.9+999.9 .
(34) 16.8X 10.1 (47) 2.9X 99+2.9
(35) 2.74X 9.5+5 X 0.274 (48) 25X 11.2X 4
(36) 0.36+9.6 - 3.2. (49) 23.25- 6.75 - 3.25.
(37) 3.75X 25+6.25 X 25 (50)
125X 3.2X 2.5
(63) 0.34 X 101 - 0.34 . (76)
4.52+0.61+1.39+6.48
(51) 3.6X 10.1
(64) 0.125X 32 X 2.5
(52) 5.8X 2.7+0.58 X 73 (65) 0.8X 6.3 - 0.8X 3.8
(53) 3.6+6.4 X 1.8 (66) 504- 3.2X 2.08
(54) (1.48+3.02)-( 3.6X 0.5) (67) (20 - 0.8 X 9)X 5.7
(55) (36.7 - 4.9)X 101 - 31.8. (68) 2.4X 1.5+3.6 - 1.5
(56) 6.33X 101 - 6.33
(69) 7.38 - 5.14+3.62 - 2.86
(57) 35.6 - 5 X
1.73
(70)
0.12 X 1.8+8.2 X 0.12
(58) 1.6X 55.4 - 55.4 X 0.6
(71) 5.4-[0.51 -( 1.2 - 1.03)]
(59) 17.68 - 5.2+2.7 X 1.5 .
(72)
[(8.1 - 5.6)X 0.9 - 1.05]十 0.04.
(60) 1.08 X 0.8 - 0.27 (73) 10.8 - 0.8-( 0.35+0.05)
(61) 102X 0.45 (74)
8X [1 十(2.3 - 2.25)]
(62) 22.78 - 1.25 - 0.8 (75) 2.64 X 9.9+0.264
(89) 7.236 - 0.18 - 14.3 X 0.02 . (102)
7.5X 102
(77) 4.27 -( 1.96 - 1.73 ) (90) 9.6-0.4 X 0.25
(78) (294.4 - 19.2 X 6)-( 6+8) (91) 29.7 -( 5.85 - 0.65)
(79) 12.5 X 0.76 X 0.4 X 8X 2.5 . (92)
7.4 X 9.9
(80) 4.98+8.02 X 2.5 (93) 3.84 - 2.7X 0.64
(81) 60.8 - 40.8-2.5 (94) 8.68 - 8.68- 0.56X 0.5
(82) 0.8X 69.6 X 12.5 (95) 4.7X 4.7+4.7+4.3 X 4.7.
(83) 4.98X 99+4.9 (96) 2.72 - [ (8.2 - 6.5 )X 0.5];
(84) 6.48-3.2 - 2.5 (97) 9.12+9.12 X 9 - 60.2 ;
(85) 1.2X 7.6+7.6 X
6.8 .
(98) 28.4 - 0.4 - 0.25 ;
(86) (9.4 - 5.8)X 2.07 (99) 27.36 - 27.36 - 7.6 .
(87) 12.54 - 4.56 - 3.44 - 1.54
(100) 3.25 X 0.45+6.75 X 0.45
(88) (9.36 X 5+9.36+9.36 X 2)X 1.25
(101) 31.5 - 24.5 -
3.5
(114) 2.5X( 1.9+1.9+1.9+1.9) (127) 0.94 X 2.5 - 0.45
(115) 7.2- 1.25 - & (128)
4X 0.8X 12.5X 2.5
(103) 6.3+3.7 X
2.8. (116) 52.4 -( 15+0.6)- 1.6
(104) 2.15+8.73+1.27+7.85 (117) 9.87 X 99+9.87
(105) 11.87-( 8.2+1.87) (118) 46.8 - 0.9-0.4
(106) 5.42 - 3.87 - 1.13
(119) 5.5X 17.3+6.7 X 5.5.
(107) 4.38 - 1.56+0.62 - 0.44 (120) 99 X 4.2+4.2
(108) 0.4X 270X 2. (121)
0.25 X 1.25 X
3.2
(109) (40+1.25 )X 8 (122) 6.4 X 14+15 X 6.4+6.4
(110) (12.5 - 0.05)X 8 (123) (1.3+1.3X 0.125X 8)-( 80 - 77.4)
(111) 2.6X 8.5+8.5 X 7.4 (124) 4X( 25+2.5+0.25) - 111
(112) 9.9X 6.9 - 6.9X 3.9 (125) 6.25十〔(17.2 - 3.6X 4.5)- 0.32〕
(113)
5.6X 99+5.6 (126) 28.4 X 99+28.4
(129)
17.5-0.25X 17+13 . (142)
2.4 X 1.5+
3.6 -1.5
(140) 6.1+3.9 - 6.1+3.9.
(153)
(45+14)- 73+710.
(141) 31.7十0.63 （保留2位小数）
(154) 13.7 X 0.125 X 8
(130) 10.1X 87
(143) 0.32 X 0.25+0.08 - 4
(131) 2.3+3.19 -( 22 - 19.8) (144) (9.6+1.48 十 3.7 )- 8
(132) 1.25 X 7.2.
(145) 5.8 十[4 X( 1.34 - 0.14 )]
(133) 9.1 - 1.2-6 - 6.24 (146) 5.4 - [0.51 -( 1.2 - 1.03 )].
(134) 7.3+12.8 - 3.8X 2.3 (147)
21.35 - 3.25 - 16.75
(135) (5.36+7.64)- 13X 100 (148)
33.02 -( 148.4 - 90.85 )- 2.5
(136) 7.575 - [ ( 5.63 - 1.88)X 0.2].
(149) 32 X 2.5 X 0.125
(137) 7.5-( 5.5+1.24) (150)
18.1+ (3 - 0.299 - 0.23 )X 1 .
(138) 0.26+15.68+9.74+2.32 (151)
67-( 2.98+0.67 )
(139) 13.26+9.55 - 3.26
(152) 8X 16 - 73.8 X 6
(155) 0.8 X [13 -( 3.12+5.28 )] (168) 18-[0.3 X( 8- 6.5 )] (156) 102 X 0.56 (169) 12.7+12.5+0.5 .
(157) 1.53 X 1.7+0.47 X 1.7 . (170) 91 - 2.6 - 0.05=
(158) 5.18+0.73+0.82 (171) 6.3 X 3.7+6.3 X 6.3=
(159) 0.75 X 1.8 - 1.5 (172) (3.7+1.7 X 0.4 )- 2.5= (160) 12.5 X 7.1 X 0.8 (173) 7.28+3.2 - 2.5=
(161) 6.12 X 99+6.12 (174) 0.74+0.9 X 7.4=
(162) 8.6 - 0.86+8 X 0.35 (175) 7.8 - 0.125 - 0.8=
(163) 5.6 X( 18.5 - 8.5 - 0.5 ) (176) 37.5 十[0.3 X( 1.34 - 0.84 )] (164) 0.125 X 4.78 X 80 (177) (2.5+27.75 - 1.5 ) X 1.6 . (165) 2.8 X 3.6+1.4 X 2.8 (178) 6.21 - 3.8+2.2
(166) (0.4+40 )X 2.5 (179) 6.03+3.7+2.97
(167) 78.7 - 17.7 X 3.6 (180)
17.43 - 6.57 - 2.43