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
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=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
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=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
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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
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[-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
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初一100道数学计算题及答案
