
3.72×3.5+6.28×3.5 36.8-3.9-6.1 2 5.48-(9.4-0.52)
4.8×7.8+78×0.52 3.6×102 6.4×0.25+3.6÷4
32+4.9-0.9 4.8-4.8×0.5 (1.25-0.125)×8
4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09 4.02+
5.4+0.98 5.17-1.8-3.2 13.75-(3.75+
6.48) 3.68+
7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2 3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.47
5.27+2.86-0.66+1.63 13.35-4.68+2.65 47.8-7.45+8.8
0.398+0.36+3. 15.75+3.59-0.59+14.25 42.5-(6.07+1.13)4.2÷3.5 320÷1.25÷8 18.76×9.9+18.76 3.52÷2.5÷0.4 4.78÷0.2+3.44 3.9-4.1+6.1-
5.9 0.49÷1.4 1.25×2.5×32 3.6-0.6×2
3.65×10.1 3.6-3.6×0.8 15.2÷0.25÷4
5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2
0.×100.1 146.5-(23+46.5) 17.8÷(1.78×4)
5.83×2+4.27 (45.9-32.7)÷8÷0.125 9.7×99+9.7
4.36×12.5×8 1
5.6×13.1-15.6-15.6×2.1 0.65×10127.5×3.7-7.5×3.7 8.54÷2.5÷0.4 3.83×4.56+3.83×5.44 6048+975-3045 498×39
6048+75-3005 8×75-3005 6098+935-1045 404×24-758 1048+975-345 0×75÷35
878×29 68×975-345
9948+275-304 5690×6÷3568+975-345 68+975÷345 8+75-35 685+975-345
68+975-345 548×975-3045
48×975-304 6748+975-5045 6048+975-3045 0.425×0,38÷0,01
5.5 748+95-45 20.5-1.074-8.35×
48×975-3045 0.425×0,38÷0,0120.5-1.074-8.35×
5.5 52.8÷0.75×0.25 45×(267+143)(2448+8)÷23 327+96÷32×25 727+9660÷30×25 586-45×81÷27 58-45×80÷25
3.68÷
4.6+6.32 368÷46+632
604×24-758 4×14-858
604×24-758 408×59
478×39 278×39 478×19
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 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 ×
5/6 28. 1/4 + 3/4 ÷
2/3
15 27. 7/19 + 12/19 ×
21/16 + 1/2 30. 101 ×1/5 – 1/5 ×21
29. 8/7 ×
简便:
1. 5/2 -(3/2 + 4/5 )
2. 7/8 + (1/8 + 1/9 )
3. 5/6 + (1/2 + 2/3 )
4. 9/7 - (2/7 - 10/21 )
5. 3/7 + 49/9 + 4/7
6. 8/9 + 15/36 + 3/27
7. 5/2 - (3/2 + 4/5 )
8. 7/8 + (1/8 + 1/9 )9. 9/7 - (2/7 - 10/21 )
10. 1/5 + (3/7 + 8/10 )
分数脱式:
1. 1/3 + 3/4 + 1/5
2. 3/8 + 8/3 - 1/2
3. 5/6 + 1/12 + 3/4
4. 30/46 - 1/2 + 7/23
5. 8/11 + 2/6 + 7/33
6. 19/8 - 1/2 - 3/4
7. 7/25 + 3/10 - 2/5
8. 18/121 - 1/2 + 9/11
9. 6/17 - 1/51 - 1/34 10.8/15 + 7/3 - 8/5
408-12×24 (46+28)×60 42×50-1715÷5
32+105÷5 (108+47)×52 420×(327-238)
(4121+23)÷7 671×15-974 469×12+1492
405×(3213-31) 5000-56×23 125×(97-81)
6942+480÷3 304×32-154 20+80÷4-20=100÷(32-30)×0=25×4-12×5=
70×〔(42-42)÷18〕=75×65+75×35=
