急急急!(含小数、分数、百分数,乘除混合)(必须要能除尽的)(不能含整数)
要正确的答案和过程,
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
1.18.1+(3-0.299÷0.23)×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.8
4.(3.2×1.5+2.5)÷1.6
5.6-1.6÷4= 5.38+7.85-5.37=
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)+4.2×3.74
10.32.52-(6+9.728÷3.2)×2.5
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
1.18.1+(3-0.299÷0.23)×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.8
4.(3.2×1.5+2.5)÷1.6
5.6-1.6÷4= 5.38+7.85-5.37=
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)+4.2×3.74
10.32.52-(6+9.728÷3.2)×2.5
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第1个回答 2013-12-19
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