0.4×125×25×0.8
=（0.4×25）×（125×0.8)
=10×1些死市任迫右洲00=1000
1.25×（8+10）
=1.25×8+1.25×10
=10放脸德到跟百书算+12.5=22.5
9123-（123+8.8）
来自=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
=999360问答9×（1000+1）
=协领众取9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.心慢正总思慢真5＋8.3×3.7
=（14.8须打酒学设必源席法掉早-6.5）×6.3＋8.3×3.7
=8.3×6.3+8.3亲界盾深照敌×3.7
8.3×（6.3＋3怎气分促初啊.7）
=8.3×1物绍待一苗也受再0
=83
1.24+0.78+8.76
=（1.24+8.76）+0.78
=10+0.78
=电思必走浓持万停的施院10.78
933-157-43
=933-（1尼受促脱二树铁57+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
=10销0+100+100+48
=348
2881÷43
=（1290+1591）÷434
=1290÷43+1591÷43
=30移先+37
3.2×4地时2.3×3.75-12.5×0.423×16
=3.2×42.渐于孙延己道3×3.75-1.25×4染2.3×1.6
=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降)
=4237
1.8+18÷1.5-0.5×0.3
=1.8装变频成什频推+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
还有的从书上找吧已经写了21道了赞同1|评论2011-2-1116:44知道778811|一级
小学六年级简便计算
1.(1/69+2/71)乘23+25除以71
=1/69*23+2/71*23+25/71
=1/3+(46/71+25/71)
=1/3+1
=4/3
2.(1+1/2)乘(1-1/2)乘(1+1/3)乘(1-1/3)乘........乘(1+1/9)乘(1-1/9)
=3/2*1/2*4/3*2/3...*10/9*8/9
=1/2*10/9(中间的都约去了）
=5/9
3.1/2乘3+1/3乘4+.......+1/19乘20
=1/2-1/3+1/3-1/4+...+1/19-1/20
=1/2-1/20
=9/20
4.1/27+505/2727+131313/272727
=1/27+5*101/(27*101)+13*10101/(27*10101)
=1/27+5/27+13/27
=19/27
5.100-98+96-94+....+4-2
=(100-98)+(96-94)+...(4-2)
=2+2+...+2(共有25个）
=2*25
=50
标签：脱式,殖水,围题
