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? 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? ?–?3/4?×?9/24?
20.?3?×?2/9?+?1/3? ?×?3/25?+?3/7?
22.?3/14?××?2/3?+?1/6? 1/5?×?2/3?+?5/6?
24.?9/22?+?1/11?÷?1/2? .?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? p> p>
29.?8/7?×?21/16?+?1/2
30.?101?×?1/5?–?1/5? ×? p>
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42?
p>37.812-700÷（9+31×11）
38.85+14×（14+208÷26）
39.（284+ 16）×（ 512-8208÷18)
40.120-36×4÷18+35
41. /p>
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
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)=? >50,32,52 -(6+9,728÷3,2)×2,5?
51.[(7.1-5.6)×0.9-1.15]?÷2.5
52.5.4÷[2.6×(3.7-2.9)+0.62]? >
53.12×6÷（12-7.2）-6?
（54）12×6÷7.2-6
(55)0.68×1.9+0.32× 1.9?
(56)(58+370)÷(64-45)
(57)42580-64×21÷28? (58)(136+64)×(65-345÷23)
(59)48.10.15-10.75×0.4-5.7
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? (2) 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)
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? 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? ?49/9?-?4/3?
2.?8/9?×?15/36?+?1/27? 5/6?–?2/9?×3
4.?8×?5/4?+?1/4? / 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? ?14?×?8/7?–?5/6?×?12/15
19.?17/32?–?3/4?×?9/24? p >
20.?3?×?2/9?+?1/3?
21.?5/7?×?3/25?+?3/7? p >
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? ?1/4?+?3/4?÷?2/3?
29.?8/7?×?21/16?+?1/2? 1/5?–?1/5?×?21