有理数混合运算100题(有答案)
1.(3)22
2. 124112(3)5(2)(3)
3. (1.5)4142.75(512)
4. 8(5)63
5. 45(12)3
6. (2)(556)(4.9)0.6
.
7.(10)25(25)
8. (5)3(35)2
9、5(6)(4)2(8)
10. 21(6)(14722)
11.(1650325)(2)
12. (6)8(2)3(4)25
.
13. (12)212(23232)
14. 11997(10.5)13
15. 32[32(23)22]
16. (34)2(231)0
17. 14(10.5)13[2(3)2]
18. (81)(2.25)(49)16
.
19. 52[4(10.215)(2)]
20. (5)(36)(7)(36)12(36777)
21. (58)(4)20.25(5)(4)3
22. (3)2(11)3262293
23.(-1620345127)×(-15×4)
24. 18737(-2.4)
.
25. 2÷(-37)×47÷(-517)
26. [1512-(114÷125+312)]÷(-118) 27. 15×(-5)÷(-15)×5
28. -(13-211+143-27)÷(-421)
29.-13×23-0.34×27+13×
(-13)-57×0.34
30.(-13)×(-134)×131×(-
671)
.
31.(-478)-(-512)+(-414)-318
32.(-16-50+325)÷(-2)
33.(-0.5)-(-314)+6.75-512
34. 178-87.21+43212+531921-12.79
35. (- 6)×(-4)+(-32)÷(-8)-3
36.-27-(-12)+|-112|
.
37.(-9)×(-4)+ (-60)÷12
38. [(-149)-157+218]÷(-421)
39. -|-3|÷10-(-15)×13
40.-1315×(327-165)÷22
41.(21173-312+118)÷(-116)×(-7)
42. 3232 +4
43. 23×24×25
.
44. 2×32-232
45、222+23+23
46. 22-(3)3×13-13
47. 0-32÷3×23
48. 22×122÷0.83
49. -32×123-23÷122
.
50.324×(-23+1) ×0
51.232(232)
52. 1(5)(155)5
53.7.20.95.61.7
54. 22(1)3
55.(6)(71313)5
56. 2(1)11722
.
57.(73)(7848)
58. (50)(21510)
59.(3)22
60.1(2)4(1)(123523)
61.(1.5)412.75(5142)
62、[1(10.51)][2(3)22]
.
63、52285(2)(514)
64、8(14)5(0.25) 65、(1634112)(48)
65、 (1)(12)133 66、21214(919)
67、(81)21449(16)
.
68、
12[3114(452)]
69、349449(24)
70、(15)24(33)2(63)2812
72、
(6)8(2)3(4)25
273、1213(12)6(3)374
74、 712×134÷(-9+19)
.
75 、25×3―(―25)×1+25×(-1424)
(5)3(3)276、
5 76、|7|÷(21)1(4)29353
77、 -22
-〔-32
+ (- 2)4
÷23
〕
78、58(4)20.25(5)(4)3
80、(1)3(1)2(1)1(200422162)(1)
.
81.8377.52141732 82.
318230.1251311135747
83. 499159
84.
012131416
.
85. 1111324340.253.754.5
86. (–1.76)+(–19.15)+ (–8.24)
87. 23+(–17)+(+7)+(–13) 88.(+ 314)+(–235)+ 534+(–825) 89.
225+11+(–25)
90. 3
14–(+5)–(–134)+(–5)
.
91. –99 + 100–97 + 98–95 + 96–……+2
92. –1–2–3–4–……–100
93. (–4)×(–9)+(–25)×18
94. (–6)×0 -(–2
35)×513
95、 100×(0.7–310–425+ 0.03)
96. (–11)×
25+(–11)×935 .
97. [
98. (–18)÷(–9)+(–63)÷(-7)
99. 0÷(–105)+1÷(–9)
100. (–5)×8×(–7)+(–6)×(–5)×(–7)-(–12)×2.45×0×9×100
15111÷(––)+2]÷(–1) 62388
.
.
有理数混合运算100题参考答案
1.(3)22=-18 2.
112411()()() =-
523523
113. (1.5)42.75(5)=0 4. 8(5)63=-23
42
51258256
237.(10)25() =-8 8. (5)3()2=-45
55
16129.5(6)(4)2(8)=-28 10. 2()(2)=17
472211.(16503)(2) 12. (6)8(2)3(4)25
57 =8+25-110 =-48+8-80
3 =3110 =-120
5. 45()3=4 6. ()()(4.9)0.6=3
1 1513. ()2(2)=-
322312122323111 14. 11997(10.5)=-1 126315.[32()22] =9 16. ()2(1)0=
1334239 1617. 14(10.5)[2(3)2] 18. (81)(2.25)()16
1441 =81××× =1 699161213119. 52[4(10.2)(2)] =-25-[-4-] =-20
25255
666620.(5)(3)(7)(3)12(3)=(-5-7+12) ×(-37)=0
77749 =-1+ =
76
21. ()(4)20.25(5)(4)3 22. (3)2(1)36
5812229333 =-10-80 =-90 =9--9=-
4437734223.(-1620512)×(-15×4) 24. 187(-2.4)=5
=10+9-48+35=6
143425. 2÷(-7)×7÷(-517) =27
.
.
5581121126. [151]÷(-112-(14÷15+32)8) =[152-4×7-32]×(-9 ) 5=[12-5×7]×(-8)= -311×8=-622=-955 928963634127. 15×(-5)÷(-5)×5=25
331211128. -(13-21+14-7)÷(-42) =(3-21+14-7)×42 =14-2+9-12=9 52129.-13×23-0.34×7+3×(-13)-7×0.34
512 =[-13×2]-0.34×7-7×0.34 =-13-0.34=-13.34 3+3×(-13)1130.(-13)×(-134)×13×(-67)=-2
3111131.(-478)-(-52)+(-44)-38=-8+14=-64
2132.(-16-50+35)÷(-2) 33.(-0.5)-(-314)+6.75-52 73 =8+25-110 =3110 =(-0.5)-512+6.75-(-3.25)=4
2
2 34. 178-87.21+4321+531921-12.79 35.(-6)×(-4)+(-32)÷(-8)-3 2 =178-87.21-12.79+4321+531921 =24+4-3
=178-100+97 =25 =175
52136. -7-(-12)+|-12| =17 37.(-9)×(-4)+ (-60)÷12 =36-6=31 958137. 38. [(-14)-17+21]÷(-42) 39. -|-3|÷10-(-15)×13 398 =[-14-12+21]×(-42) =-10+5 77 =27+72-16=83 =410
375171140.-15×(32-16)÷22 41. (213-32+118)÷(-16)×(-7)
123=-8×(-)× =(3-2+18)×(-7)×(-7) 55323=50 =(3-2+18)×6 =14-21+
2773567735353=43
22 42. 32 +4 43. 2×2×2 44. 2×32-23
3345 =-682 =21345=212=4096 =2×324×32
=-6×9=-54
.
.
45.22+2+23 =2 46. 22-(3)3×1-1=-4-27+1 =-30
23332233256147. 0-3÷3×2 =24 48. 2×12÷0.8 =4×4×4=164
1331249. -32×13-2÷2 50. 4×(-3+1) ×0 =0
2322 =-1+32=31
15253.7.20.95.61.7-12 54. 2(1)3-3
51.232(232) 0 52. (5)()525
126721155.()()5 -6 56. ()17
131372217372157.()()- 7 58. (50)()-25
8485101241159.(3)22= -18 60. ()()()=-0.2
235237111261.(1.5)42.75(5)= 0 62、[1(10.5)][2(3)] =-4
42263、315285(2)()=-2 64、8()5(0.25)= 3
425141513121165、()(48) = -24 66、 (1)(1)= 64123351167、2(919) =
241114 68、(81)2(16) = -36 163649113119414469、 [(5)]=-5 70、3(2) = -36
364924422321522(6)8(2)(4)5=-120 71、()24(33)(63)= -16 72、
812321373、11(12)6()3 =- -171 74、 71×13÷(-9+19) =
241641967223(5)3()25 =-45 75 、25×3―(―25)×1+25×(-1) = 25 76、
42477、|721111|÷()(4)2 = - 78、 -22 -〔-32 + (- 2)4 ÷23 〕 = 3 935331312135200479、(4)20.25(5)(4)3 = -90 80、()()(1)(2)(1) =-
216482.
.
41387.521372 =-34 81.7
111173230.1251354377=-512 82. 8
83. 499159=-144
1111011 84.2346=12
85. 1130.253.754.5=-3.5
12143486. (–1.76)+(–19.15)+ (–8.24)=-29.15 87. 23+(–17)+(+7)+(–13)=0
133288. (+ 3)+(–2)+ 5+(–8)=—2
4545222289. ++(–)=
5115111390. 3–(+5)–(–1)+(–5)=-5
4491. –99 + 100–97 + 98–95 + 96–……+2 = 50
92. –1–2–3–4–……–100=—5050
21)× =35.95 583594. (–6)×0 -(–2)×=1
5133495. 100×(0.7––+ 0.03)=27
10252396. (–11)×+(–11)×9=—110
551511197. [÷(––)+2]÷(–1) =—1
6238893. (–4)×(–9)+(–
98. (–18)÷(–9)+(–63)÷(-7)=11 99. 0÷(–105)+1÷(–9)=—
1 9100.(–5)×8×(–7)+(–6)×(–5)×(–7)-(–12)×2.45×0×9×100 =70
.
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