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. 1 4 × 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/ 1 4 ×× 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÷ 1 8+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 1 2-700÷(9+3 1× 1 1) ( 136+64)×(65-345÷23) 38.85+ 14×( 14+208 ÷26) 39. (284+ 16)×(5 12-8208÷ / kloc-0/8) 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÷0.8-6 5438+0.2×5= 6- 1. 1 9×3-0.43= 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÷( / kloc-0/2-7.2)-6 (4) 12×6÷7.2-6 1.[(5.84-3.9)/0.4+0. 15]*0.92 2.4.38/(36.94+34.3*0.2) 3.(284+ 16)*(5 12-8208/ / kloc-0/8) 4.5.4/[2.6*(3.7-2.9)+0.62] 5.[(7. 1-5.6)*0.9- 1. 15]/2.5 6.32.52-(6+9.728/3.2)*2.5 7.5.8*(3.87-0. 13)+4.2* 3.7 8.8/9* [ 15/ 16*(7/ 16- 1/4)/ 1/2] 9.[5 1/2- 1.04*( 1 2/3+5/6)]/2.9 10.6 3/7 /3/ 7-[(7-0.5)* 1/4] 1 1.(0.75+0.2)/0.25*25%+ 12/0.75+7.2/2.4 12. 1.2 1*42-(4.46+0. 14)* / kloc-0/375+450/ 18* 25 13. 1+0.45/0.9-0.75- 168. 1/(4.3*2-0.4) 14.605*8+3.5-44+ 10.9-(6.6+