2.8×5.6+3.4×245 +280%= 1.7×38 +2.3×38= 2.64÷7+3.36× 17 + 17= 7.4+459 +2.6+549= 24×(565438+ 02 -38 + 16 )= 0. 1 25×2 12 ×32= (89 +23 - 127 ) ×27= 1.25×27 10 +345 ÷0.8 26×2 1 1 13 = 57 ÷9 13 +27 ÷9 1 3= 23×3 1923= 6.28×47 +6.28÷2 13= 63 100 × 10 1 8.75-256 -( 134 +3 16 ) = 2 1 37 ÷3= 2600÷(2600÷2+2600÷4) = 4.4- 1.6- 125 9×7 10 +3×7 10 -2×7 10 = 7 10 ×9.9 = 15 ×0.5× 1 5 ×4.5 522 ÷5 1 1 + 1225 × 15 16= 27 ÷6+57 ÷ 16= 35 +25 ×34= 279 ÷54 ÷45= 2.8×5.6+3.4×245 +280%= 1 .7×38 +2.3×38= 2.64÷7+3.36× 17 + 17= 7.4+459 +2.6+549= 24×(5 12 -38 + 16 ) = 0. 125×2 12 ×32= (89 +23 - / kloc-0/27 ) ×27= 1.25×27 10 +345 ÷0.8 26×2 1 1 13 = 57 ÷9 13 +27 ÷9 13 = 23×3 1 923= 6.28×47 +6.28÷2 13= 63 100 × 10 1 8.75-256 -( 134 +3 16 ) = 2 137 ÷3= 2600÷(2600÷2+2600÷4) = 4.4- 1.6- 125 9×7 10 +3×7 10 -2×7 10 = 7 10 ×9.9= 15 ×0.5× 15 ×4.5 522 ÷56543 8+0 1 + 1225 × 15 16= 27 ÷6+57 ÷ 16= 35 +25 ×34= 279 ÷54 ÷45= 2.8×5.6+3.4×24 5 +280%= 1.7×38 +2.3×38= 2.64÷7+3.36× / kloc-0/7 + 17 = 7.4+459 +2.6+549 24×(5 12 -38 + 16 ) = 0. 125×2 12 ×32= (89 +23 - 127 ) ×27= 1 .25×27 10 +345 ÷0.8 26×2 1 1 13= 57 ÷96543 8+03 +27 ÷9 13 = 23×3 1923= 6.28×47 +6.28÷2 13= 63 / kloc-0/00 × 10 1 8.75-256 -( 134 +3 1 6 ) = 2 137 ÷3 = 2600÷(2600÷2+2600÷4) = 4.4- 1.6- 125 9×7 / kloc-0/0 +3×7 10 -2×7 10 = 7 10 ×9.9= 15 ×0.5 × 15 ×4.5 522 ÷5 1 1 + 1225 × 15 / kloc-0/6 = 27 ÷6+57 ÷ 16= 35 +25 ×34= 279 ÷54 ÷45= 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
1 1.7 × 5/49 + 3/ 14
12.6 ×( 1/2 + 2/3 )
13.8 × 4/5 + 8 × 1 1/5
14.3 1 × 5/6 – 5/6
15.9/7 - ( 2/7 – 10/2 1 )
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
2 1.5/7 × 3/25 + 3/7
22.3/ 14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24.9/22 + 1/ 1 1 ÷ 1/2
25.5/3 × 1 1/5 + 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 × 2 1/ 16 + 1/2
30. 10 1 × 1/5 – 1/5 × 2 1
3 1.50+ 160÷40 (58+370)÷(64-45)
32. 120- 144÷ 18+35
33.347+45×2-4 160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36. 178- 145÷5×6+42 420+580-64×2 1÷28
37.8 12-700÷(9+3 1× 1 1) ( 136+64)×(65-345÷23)
38.85+ 14×( 14+208÷26)
39.(284+ 16)×(5 12-8208÷ 18)
40. 120-36×4÷ 18+35
4 1.(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
5 1.[(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 (4) 12×6÷7.2-6