五年级递等式题目50道

只要写一点都好,50或100更好

第1个回答  2008-11-25
125×32
=125×(30+2)
=30×125+2×125
=3750+250
=4000
算法也就是这种了 把一个数拆分成多个数 方便计算
52×11111+88888×6
=52×11111+(8×11111)×6
=(52+8×6)×11111
=100×11111
=1111100

12÷0.125
=12×(8×0.125)÷0.125
=12×8×0.125÷0.125
=12×8
=96

32×1.24+476×0.32
=32×1.24+(476÷100)×(0.32×100)
=32×1.24+4.76×32
=(1.24+4.76)×32
=6×32
=192
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(10+490+500)
=2.005×1000
=2005
3333*3333+9999*8889
=3333×(3333+3×8889)
=9999×(1111+8889)
=9999×10000
=99990000
8.64-8.64÷2.7+9.1
=8.64-(8.64÷2.7)+9.1
=8.64-3.2+9.1
=14.54

3.83×(3.83-2.3)+1.5
=3.83×1.53+1.5
=7.3599
4.50+160÷40 (58+370)÷(64-45)
5.120-144÷18+35
6.347+45×2-4160÷52
7(58+37)÷(64-9×5)
8.95÷(64-45)
9.178-145÷5×6+42 420+580-64×21÷28
10.812-700÷(9+31×11) (136+64)×(65-345÷23)
11.85+14×(14+208÷26)
12.(284+16)×(512-8208÷18)
13.120-36×4÷18+35
14.(58+37)÷(64-9×5)
15.(6.8-6.8×0.55)÷8.5
16.0.12× 4.8÷0.12×4.8
17.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
18.6-1.6÷4= 5.38+7.85-5.37=
19.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
20.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
21.10.15-10.75×0.4-5.7
22.5.8×(3.87-0.13)+4.2×3.74
23.32.52-(6+9.728÷3.2)×2.5

1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3

0.12χ+1.8×0.9=7.2 (9-5χ)×0.3=1.02 6.4χ-χ=28+4.4

11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
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
50.32.52-(6+9.728÷3.2)×2.5本回答被网友采纳
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