小弟初一新生急需150道数学有理数加法.减法.加减混合运算题!哪位仁兄帮帮忙

例 1+2+3+4
=3+3+4
=6+4
=10

1. 2100-21×53+2255
2. (103-336÷21)×15
3. 800-(2000-9600÷8)
4. 40×48-(1472+328)÷5
5. (488+344)÷(202-194)
6. 2940÷28+136×7
7. 605×(500-494)-1898
8. (2886+6618)÷(400-346)
9. 9125-(182+35×22)
10. (154-76)×(38+49)
11. 3800-136×9-798
12. (104+246)×(98÷7)
13. 918÷9×(108-99)
14. (8645+40×40)÷5
15. (2944+864)÷(113-79)
16. 8080-1877+1881÷3
17. (5011-43×85)+3397
18. 2300-1122÷(21-15)
19. 816÷(4526-251×18)
20. (7353+927)÷(801-792)
21. (28+172)÷(24+16)
22. 6240÷48+63×48
23. 950-28×6+666
24. 86×(35+117÷9)
25. 2500+(360-160÷4)
26. 16×4+6×3
27.39÷3+48÷6
28.24×4-42÷3
29.7×6-12×3
30.56÷4+72÷8
(1)-8+4÷(-2); (2)6-(-12)÷(-3);
(3)3•(-4)+(-28)÷7; (4)(-7)(-5)-90÷(-15);
102×(-4.5)-(-3)×(-5) ÷2
7.8×6.9+2.2×6.9
(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)
5.6×0.258×(20-1.25)
(-7.1) ×〔(-3)×(-5)〕÷2
-2.5×(-4.8)×(0.09)÷(-0.27)
127+352+73+44×(-2)
89×276+(-135)-33
25×71+75÷29 -88÷(-2)
243+89+111+57
9405-2940÷28×21
920-1680÷40÷7
690+47×52-398
148+3328÷64-75
360×24÷32+730
2100-94+48×54
51+(2304-2042)×23
4215+(4361-716)÷81
(247+18)×27÷25
36-720÷(360÷18)
1080÷(63-54)×80
(528+912)×5-6178
8528÷41×38-904
264+318-8280÷69
(174+209)×26- (9000^0)
814-(278+322)÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷(630÷7)
285+(3000-372)÷36
1+5/6-19/12
3x(-9)+7x(-9)
(-54)x1/6x(-1/3)
1.18.1+(3-0.299÷0.23)×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.84
3.2×1.5+2.5÷(-1.6)
(-2)×3.2×(1.5+2.5)÷1.6
5.6-1.6÷4+(6.8-9)
5.38+7.85-5.37÷89
6.7.2÷0.8-1.2×5
6-1.19×3-0.43
7.6.5×(4.8-1.2×4)
0.68×1.9+0.32×1.9
8.10.15-10.75×0.4-5.7
9.5.8×(3.87-0.13)
(-8.01)+4.2×3.74
10.32.52-(6+9.728÷3.2)×2.5
11.[(7.1-5.6)×0.9-1.15] ÷2.5
12.5.4÷[2.6×(3.7-2.9)+0.62]
13.12×6÷(12-7.2)-6
14.12×6÷7.2-6
15.33.02-(148.4-90.85)÷2.5
(-5)-252×(-78)
(-6) ×(-2)+3÷(5+50)
7-7+3-6-(-90)
(-8)(-3)×(-8)×25
(7+13) ÷(-616)÷(-28)
(8+14-100-27)÷4
(-15) ÷(-1)-101÷10
16÷0.21×(-8) ×(4.1+5.9)
(-10) ×(-2) ×4÷{-9÷[6+(-5.67)]}
(-18)(-4)2×[8.01×(-3.14)
9-32{-890-[79+8.1] ×9}
(-20)-23+(-9) ×9.42
(-24)3.4×104÷(-5) ×200.96
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1) +√9
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2) ×2^7
(5+3/8*8/30/(-2)- √36
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
1+2+3+4+......+100000
1/1+1/2+1/3+......1/50
1+1/2+1/4+1/8+1/16+......1/512
3+9+27+81+243+......9999
1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
31.50+160÷40 (58+370)÷(64-45)
32.120-144÷18+35
33.347+45×2-4160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷(9+31×11) (136+64)×(65-345÷23)
38.85+14×(14+208÷26)
39.(284+16)×(512-8208÷18)
40.120-36×4÷18+35
41.(58+37)÷(64-9×5)
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74
-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y

参考资料:偶也系初一滴~~省实验滴~~

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第1个回答  2010-10-10
39+[-23]+0+[-16]=

[-18]+29+[-52]+60=

[-3]+[-2]+[-1]+0+1+2=

[-301]+125+301+[-75]=

[-1]+[-1/2]+[39+[-23]+0+[-16]= 0

[-18]+29+[-52]+60= 19

[-3]+[-2]+[-1]+0+1+2= -3

[-301]+125+301+[-75]= 50

[-1]+[-1/2]+3/4+[-1/4]= -1

[-7/2]+5/6+[-0.5]+4/5+19/6= 1.25

[-26.54]+[-6.14]+18.54+6.14= -8

1.125+[-17/5]+[-1/8]+[-0.6]= -3+3/4]+[-1/4]=

[-7/2]+[+5/6]+[-0.5]+4/5+19/6=

[-26.54]+[-6.14]+18.54+6.14=

1.125+[-17/5]+[-1/8]+[-0.6]=

0.75+[-11/4]+0.125+12又5/7+[-3/8]=

[-4/9]+[-3/5]+[+11/8]+[+5/9]+[-1/8]+[-0.4]=39+[-23]+0+[-16]=

[-18]+29+[-52]+60=

[-3]+[-2]+[-1]+0+1+2=

[-301]+125+301+[-75]=

[-1]+[-1/2]+[+3/4]+[-1/4]=

[-7/2]+[+5/6]+[-0.5]+4/5+19/6=

[-26.54]+[-6.14]+18.54+6.14=

1.125+[-17/5]+[-1/8]+[-0.6]=

0.75+[-11/4]+0.125+12又5/7+[-3/8]=

[-4/9]+[-3/5]+[+11/8]+[+5/9]+[-1/8]+[-0.4]=
第2个回答  2010-10-07
擦拭

相关了解……

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