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初一100道数学计算题及答案
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更新时间:2024-04-20 16:38:19
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初一100道数学计算题及答案

李惠德回答:
  1.25×(8+10)   =1.25×8+1.25×10   =10+12.5=22.5   9123-(123+8.8)   =9123-123-8.8   =9000-8.8   =8991.2   1.24×8.3+8.3×1.76   =8.3×(1.24+1.76)   =8.3×3=24.9   9999×1001   =9999×(1000+1)   =9999×1000+9999×1   =10008999   14.8×6.3-6.3×6.5+8.3×3.7   =(14.8-6.5)×6.3+8.3×3.7   =8.3×6.3+8.3×3.7   8.3×(6.3+3.7)   =8.3×10   =83   1.24+0.78+8.76   =(1.24+8.76)+0.78   =10+0.78   =10.78   933-157-43   =933-(157+43)   =933-200   =733   4821-998   =4821-1000+2   =3823   I32×125×25   =4×8×125×25   =(4×25)×(8×125)   =100×1000   =100000   9048÷268   =(2600+2600+2600+1248)÷26   =2600÷26+2600÷26+2600÷26+1248÷269   =100+100+100+48   =348   2881÷43   =(1290+1591)÷434   =1290÷43+1591÷43   =30+37   3.2×42.3×3.75-12.5×0.423×16   =3.2×42.3×3.75-1.25×42.3×1.6   =42.3×(3.2×3.75-1.25×1.6)   =42.3×(4×0.8×3.75-1.25×4×0.4)   =42.3×(4×0.4×2×3.75-1.25×4×0.4)   =42.3×(4x0.4x7.5-1.25x4x0.4)   =42.3×[4×0.4×(7.5-1.25)]   =42.3×[4×0.4×6.25]   =42.3×(4×2.5)   =4237   1.8+18÷1.5-0.5×0.3   =1.8+12-0.15   =13.8-0.15   =13.65   6.5×8+3.5×8-47   =52+28-47   =80-47   (80-9.8)×5分之2-1.32   =70.2X2/5-1.32   =28.08-1.32   =26.76   8×7分之4÷[1÷(3.2-2.95)]   =8×4/7÷[1÷0.25]   =8×4/7÷4   =8/7   2700×(506-499)÷900   =2700×7÷900   =18900÷900   =21   33.02-(148.4-90.85)÷2.5   =33.02-57.55÷2.5   =33.02-23.02   =10   (1÷1-1)÷5.1   =(1-1)÷5.1   =0÷5.1   =0   18.1+(3-0.299÷0.23)×1   =18.1+1.7×1   =18.1+1.7   =19.8   [-18]+29+[-52]+60=19   [-3]+[-2]+[-1]+0+1+2=-3   [-301]+125+301+[-75]=50   [-1]+[-1/2]+3/4+[-1/4]=-1   [-7/2]+5/6+[-0.5]+4/5+19/6=1.25   [-26.54]+[-6.14]+18.54+6.14=-8   1.125+[-17/5]+[-1/8]+[-0.6]=-3   [-98+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)   5+21*8/2-6-59   68/21-8-11*8+61   -2/9-7/9-56   4.6-(-3/4+1.6-4-3/4)   1/2+3+5/6-7/12   [2/3-4-1/4*(-0.4)]/1/3+2   22+(-4)+(-2)+4*3   -2*8-8*1/2+8/1/8   (2/3+1/2)/(-1/12)*(-12)   (-28)/(-6+4)+(-1)   2/(-2)+0/7-(-8)*(-2)   (1/4-5/6+1/3+2/3)/1/2   18-6/(-3)*(-2)   (5+3/8*8/30/(-2)-3   (-84)/2*(-3)/(-6)   1/2*(-4/15)/2/3   -3x+2y-5x-7y   1437×27+27×563〔75-(12+18)〕÷15   2160÷〔(83-79)×18〕280+840÷24×5   325÷13×(266-250)85×(95-1440÷24)   58870÷(105+20×2)1437×27+27×563   81432÷(13×52+78)[37.85-(7.85+6.4)]×30   156×[(17.7-7.2)÷3](947-599)+76×64   36×(913-27
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