大师作文网2.3×55-2.8+28×4.6这道题能不能用简便方法计算.急……
来源：学生作业帮 编辑：大师作文网作业帮 分类：数学作业 时间：2024/11/13 10:32:05
2.3×55-2.8+28×4.6这道题能不能用简便方法计算.急……
可以
啊1. 3/4*1/9+1/4*1/9
2. 5/8*2/7+5/8*5/7
3. 101*1/5-1/5*21
4. 31*5*6-5/6
5. 8*4/5+8*11/5
6. 6*(1/2+2/3)
7. (3/5-1*2)*5/3
8. 12*(2*3+1/6)
9. 4/7*5/9+3/7*5/9
10. (3+1)*5/6
11. 5/2*(3/2+4/5)
12. 1/6*(2/3+3/4)
13. 7/72*(1/8+1/9)
14. 9*5/6+5/6
15. 12*5/6-5/6*3
16. 21/22*(2/7+10/21)
17. 45*2/3+1/3*45
18. 1/5*2/3+4/3*1/5
19. 9/11*(11/18+11/20)
20. 2/5*(5/9+5/7)
21.1/3*(5*(2/3))
22.(1+37%)*20
23.35/2*75%
24.30*(50/2)
25.(54+10%)/20
26.(25/3*18)*30%
27.(2+70%)*40
28.1/7*(98*(1/4)*2)
29.25%*((23+2%)*4)
30.(30+20%)/2
31.12*3/(25+20%)
32.30/(3+40%)
33.27/8*16*10%
34.(2/3)*(3+6)*(1/2)
35.45*(1/9)*24
36.(35+10%)*27
37.(45+50%)*3*1/2
38.(43*20%)+(3*(1/9))
39.27*(9*(1/3))*5%
40.14*15%+25*8*(1/4)
41.7*(1/2)/49
42.(1+48%)*2
43.(4*8-12)*50%
44.(48/60%)/10
45. 63*(1/7)*30%
46. 8/9 × 15/36 + 1/27
47. 12× 5/6 – 2/9 ×3
48. 8× 5/4 + 1/4
49. 6÷ 3/8 – 3/8 ÷6
50. 4/7 × 5/9 + 3/7 × 5/9
51. 5/2 -（ 3/2 + 4/5 ）
52. 7/8 + （ 1/8 + 1/9 ）
53. 9 × 5/6 + 5/6
54. 3/4 × 8/9 - 1/3
55. 7 × 5/49 + 3/14
56. 6 ×（ 1/2 + 2/3 ）
57. 8 × 4/5 + 8 × 11/5
58 . 31 × 5/6 – 5/6
59. 9/7 - （ 2/7 – 10/21 ）
60. 5/9 × 18 – 14 × 2/7
61. 4/5 × 25/16 + 2/3 × 3/4
62. 14 × 8/7 – 5/6 × 12/15
63. 17/32 – 3/4 × 9/24
64. 3 × 2/9 + 1/3
65. 5/7 × 3/25 + 3/7
66. 3/14 ×× 2/3 + 1/6
67. 1/5 × 2/3 + 5/6
68. 9/22 + 1/11 ÷ 1/2
69. 5/3 × 11/5 + 4/3
70. 45 × 2/3 + 1/3 × 15
啊1. 3/4*1/9+1/4*1/9
2. 5/8*2/7+5/8*5/7
3. 101*1/5-1/5*21
4. 31*5*6-5/6
5. 8*4/5+8*11/5
6. 6*(1/2+2/3)
7. (3/5-1*2)*5/3
8. 12*(2*3+1/6)
9. 4/7*5/9+3/7*5/9
10. (3+1)*5/6
11. 5/2*(3/2+4/5)
12. 1/6*(2/3+3/4)
13. 7/72*(1/8+1/9)
14. 9*5/6+5/6
15. 12*5/6-5/6*3
16. 21/22*(2/7+10/21)
17. 45*2/3+1/3*45
18. 1/5*2/3+4/3*1/5
19. 9/11*(11/18+11/20)
20. 2/5*(5/9+5/7)
21.1/3*(5*(2/3))
22.(1+37%)*20
23.35/2*75%
24.30*(50/2)
25.(54+10%)/20
26.(25/3*18)*30%
27.(2+70%)*40
28.1/7*(98*(1/4)*2)
29.25%*((23+2%)*4)
30.(30+20%)/2
31.12*3/(25+20%)
32.30/(3+40%)
33.27/8*16*10%
34.(2/3)*(3+6)*(1/2)
35.45*(1/9)*24
36.(35+10%)*27
37.(45+50%)*3*1/2
38.(43*20%)+(3*(1/9))
39.27*(9*(1/3))*5%
40.14*15%+25*8*(1/4)
41.7*(1/2)/49
42.(1+48%)*2
43.(4*8-12)*50%
44.(48/60%)/10
45. 63*(1/7)*30%
46. 8/9 × 15/36 + 1/27
47. 12× 5/6 – 2/9 ×3
48. 8× 5/4 + 1/4
49. 6÷ 3/8 – 3/8 ÷6
50. 4/7 × 5/9 + 3/7 × 5/9
51. 5/2 -（ 3/2 + 4/5 ）
52. 7/8 + （ 1/8 + 1/9 ）
53. 9 × 5/6 + 5/6
54. 3/4 × 8/9 - 1/3
55. 7 × 5/49 + 3/14
56. 6 ×（ 1/2 + 2/3 ）
57. 8 × 4/5 + 8 × 11/5
58 . 31 × 5/6 – 5/6
59. 9/7 - （ 2/7 – 10/21 ）
60. 5/9 × 18 – 14 × 2/7
61. 4/5 × 25/16 + 2/3 × 3/4
62. 14 × 8/7 – 5/6 × 12/15
63. 17/32 – 3/4 × 9/24
64. 3 × 2/9 + 1/3
65. 5/7 × 3/25 + 3/7
66. 3/14 ×× 2/3 + 1/6
67. 1/5 × 2/3 + 5/6
68. 9/22 + 1/11 ÷ 1/2
69. 5/3 × 11/5 + 4/3
70. 45 × 2/3 + 1/3 × 15