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
0.45×2.5＝1.125
0.8×1.25＝1
0.3×3.6＝1.08
0.3×0.3＝0.09
10×0.07＝ 0.7
0.92×0.4＝ 0.368
0.2×0.26＝0.052
0.14×4＝0.56
0.02×0.1＝0.002
1.2×0.3＝ 0.36
2.5×0.4＝1
2.4×5＝12
0.22×4＝ 0.88 3.25×0＝0
0.9－0.52＝ 0.38
3.99×1＝3.99
0×3.52＝ 0
12.5×8＝100
8÷10 = 0.8
10-1.8-7.2= 1
0.43+3.57= 4
2.5×4×12=144
0.9×0.8= 0.72
80道脱式计算 答案过程
