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 21.5/7 × 3/25 + 3/7 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 28.1/4 + 3/4 ÷ 2/3 29.8/7 × 21/16 + 1/2 30.101 × 1/5 – 1/5 × 21 31.50+160÷40 (58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 420+580-64×21÷28 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(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 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 (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)*(512-8208/18) 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] 11.(0.75+0.2)/0.25*25%+12/0.75+7.2/2.4 12.1.21*42-(4.46+0.14)*1375+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+0.125/12.5%) 15.56*(56-65)*[0.325-62/30+(56/8)-65 ] 16.4/7*5/9 + 3/7*5/9-3/4 × 8/9 - 1/3 17.50+160/40 *(58+370)/(64-45) 18.347+45×2-4160÷52 19.6-1.6÷4+ 5.38+7.85-5.37 20.5.4÷[2.6×(3.7-2.9)+0.62 30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4 1.25×2.4) 2.55×7.1 2.45×7.1 777×9 1111×3 0.8×〔15.5-(3.21 5.79)〕 (31.8 3.2×4)÷5 31.5×4÷(6÷3) 0.64×25×7.8 2.22÷2.5×2.5÷2 194-64.8÷1.8×0.9 36.72÷4.25×9.9 5180-705×6 24÷2.4-2.5×0.8 (4121 2389)÷7 671×15-974 469×12 1492 405×(3213-3189) 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] 19.4×6.1×2.3 5.67×0.2-0.62 18.1×0.92 3.93 0.043×0.24×0.875 0.4×0.7×0.25 0.75×102×2 100-56.23 0.78 5.436-4.07×0.86 1.853+654-583 2.951×75-956 3.854+965-852 4.741+852+963 5.951+753-832 6.423-512+627 7.746+958-654 8.9987+658-2235 9.861-546+3368 10.8856+9951-10254 1.8546+912-6589 2.6541+6987-3354 3.6987-3546+3216 4.9654+364-3365 5.9658+6325-5214 6.8547-5214+6325 7.3258+1258-2354 8.6547+7456-9632 9.32145-25698+325 10.856+9541-753 1.58+89+38 2.685+289+309 3.985-682+521 4.369+258+147 5.963-852+741 6.5+98+79 7.365-264+951 8.951+753-864 9.357+159+638 10.693+954-682 11.214+354+621 12.324+965-787 13.5+684-249 14.9+85-60 15.100+200+300 16.259+324-512 17.249+654+365 18.5+64+65 19.283+591-325 20.986+934-860 1.28+49+482 2.124+125+56 3.6521+4562+782 4.452+456 5.4521+(452-52) 6.152-54-65 7.4512+125-561 8.4521+5316-4512 9.2445-561+452 10.4562+4512-546 11.12+456+561 12.845-23+56 13.5421+365-569+265-85 14.58432+52-54 15.214-98-85 16.365+56+56+96 17.854-5695-23+52 18.2564+564+65 19.256+65+65 20.56+5684-98 1.45+15×6 2.250÷5×8 3.6×5÷2×4 4.30×3+8 5.400÷4+20×5 6.10+12÷3+20 7.(80÷20+80)÷4 8.70+(100-10×5) 9.360÷40+10 10.40×20-200 11.(80-25)*2 12.70+45 13.90×2÷3 14.16×6÷3 15.300×6÷9 16.540÷9×7 17.30×20÷15 18.400÷4×7 19.(350-80)÷9 20.160+70+50 21.18-64÷8 22.42÷6+20 23.40-5×7 24.80+60÷3 25.41+18÷2 26.75-11×5 27.42+7-29 28.5600÷80 29.25×16÷4 30.120×25÷5 31.36×11÷3 32.1025÷25×8 33.336+70-6 34.25×9×4 35.200-33×3 36.3020-1010+54 37.12×50+10 38.25×8+199 39.23×11-13 40.125÷25-5 45+240÷12 124+78+22 100-35-25 (140-70)×54 63+84×2÷42 490÷7+24×5 26×6-110 345+99 (46-20)×30-90 25×27×4 15×7+85×7 (40-4)×25 125×64 2400÷80-14×2 108-(83+360÷60) (420+48)÷(375-345) 290-(34×3+99) 142-54÷9+14 240÷16 75×4×25 407-99 16×76-76×6 99×53+53 720÷36÷2 103×35 450-2×(16+9) 245-(45+39) 28×25 473+59+27+1 98×99 125×(8×4)×5 41×25-25 88×125 420÷(205-198)×4 540÷2÷54 460÷(29-18÷3) 720÷36 (960-400)÷70