⑴ 4400除以55巧算
4400除以55
=4400÷55
=4×11×100÷(5×11)
=4×100÷5
=400÷5
=80
⑵ 8✘22✘25简便运算怎么算
这个问题利用乘除法将1.6换算成2×0.8,然后利用乘除法:(a×b)×c=a×(b×c)进行简单计算。1.6× 7.5× 1.25 = 2× 0.8× 7.5× 1.25 = (2× 7.5 )× (0.8× 1.25) = 15× 1 = 15.在简单运算中,要注意运算符号(乘、除、加、减)与大、中、小括号的联系。不要跳过计算,以免操作失误。扩展数据1。乘法分布律简单计算中最常用的方法是乘法分布律。乘法分布定律指的是ax(b c)=axb axc其中a,b,c为任意实数。反之,axb axc=ax(b c)称为乘除法的逆应用(也叫求公约数)。2.乘法结合律乘法结合律也是一种简单运算的方法。用字母表示为(a×b)×c=a×(b×c)。它的定义(方法)是:三个数相乘,先把前两个数相乘,再和第三个数相乘;或者先把后两个数相乘,再和第一个数相乘,乘积不变。3.乘法交换定律乘法交换定律用于交换各数的位置:a× b = b× a .参考来源:
⑶ 六年级的简便计算三十道要答案
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000 9048÷26
=(2600+2600+2600+1248)÷26
=2600÷26+2600÷26+2600÷26+1248÷26
=100+100+100+48
=348
2881÷ 43
=(1290+1591)÷ 43
=1290÷43+1591÷43
=30+37 =67 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)
=423
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 =33 (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
 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 )
 1.6+7+8+9+…+48
  =(6+48)×( 48-6+1)÷2
  =1161
  2.1-2+3-4+5-…-2008+2009
  =2009-2008+2007-2006+…+5-4+3-2+1
  =(2009-2008)+(2007-2006)+…+(5-4)+(3-2)+1
  =1×(2009-1)÷2+1=1005
  3.1+2+3-4+5+6+7-8+9+…+85+86+87-88
  =(1+2+3-4)+(5+6+7-8)+9+…+(85+86+87-88)
  =2+10+18+…+170
  =(2+170)×(88÷4)÷2
  =172×11
  =1892
  4.1988-1985+1982-1979+…+8-5+2
  =(1988-1985)+(1982-1979)+…+(8-5)+2
  =3×[(1988-5)÷3+1]÷2+2
  =3×331+2
  =995
  5.1999-1996+1993-1990+…-10+7-4+1
  =(1999-1996)+(1993-1990)+…-10+(7-4)+1
  =3×[(1999-4)÷3+1]÷2+1
  =3×333+1
  =1000
  6. 1999×19981997-1997×19981999
  =1999×(19980000+1997)-1997×(19980000+1999)
  =1999×19980000+1999×1997-[1997×19980000+1997×1999]
  =1999×19980000+1999×1997-1997×19980000-1997×1999
  =(1999-1997)×19980000
  =39960000
  7.1035-998
  8.5076+99
  9.3008+449
  10.428×25×4
  11.328-189-28
  12.43.2-(3.2-1.28)
  13.25×2×1.25×4×5×8
  14.84×0.25+16÷4
15.5731-(731-525)=5731-731-525
 =5000-525
  =4475
  7~14答案37。5175。2559。42800。111。10000。25
  一点一点大的。。。不容易啊
 1.1035-998 =37
  2.5076+99=5175
  3.3008+449 =3457
  4.428×25×4=42800
  5.328-189-28 =111
  6.43.2-(3.2-1.28)=41.28
  7.25×2×1.25×4×5×8=10000
  8.84×0.25+16÷4=25
 1.125*3+125*5+25*3+25
  2.9999*3+101*11*(101-92)
  3.(23/4-3/4)*(3*6+2)
  4. 3/7 × 49/9 - 4/3
  5. 8/9 × 15/36 + 1/27
  6. 12× 5/6 – 2/9 ×3
  7. 8× 5/4 + 1/4
  8. 6÷ 3/8 – 3/8 ÷6
  9. 4/7 × 5/9 + 3/7 × 5/9
  10. 5/2 -( 3/2 + 4/5 )
  11. 7/8 + ( 1/8 + 1/9 )
  12. 9 × 5/6 + 5/6
  13. 3/4 × 8/9 - 1/3
  14. 7 × 5/49 + 3/14
  15. 6 ×( 1/2 + 2/3 )
  16. 8 × 4/5 + 8 × 11/5
  17. 31 × 5/6 – 5/6
  18. 9/7 - ( 2/7 – 10/21 )
  19. 5/9 × 18 – 14 × 2/7
  20. 4/5 × 25/16 + 2/3 × 3/4
  21. 14 × 8/7 – 5/6 × 12/15
  22. 17/32 – 3/4 × 9/24
  23. 3 × 2/9 + 1/3
  24. 5/7 × 3/25 + 3/7
  25. 3/14 ×× 2/3 + 1/6
  26. 1/5 × 2/3 + 5/6
  27. 9/22 + 1/11 ÷ 1/2
  28. 5/3 × 11/5 + 4/3
  29. 45 × 2/3 + 1/3 × 15
  30. 7/19 + 12/19 × 5/6
  31. 1/4 + 3/4 ÷ 2/3
  32. 8/7 × 21/16 + 1/2
  33. 101 × 1/5 – 1/5 × 21
  34.50+160÷40
  35.120-144÷18+35
  36.347+45×2-4160÷52
  37(58+37)÷(64-9×5)
  38.95÷(64-45)
  39.178-145÷5×6+42
  40.812-700÷(9+31×11)
  41.85+14×(14+208÷26)
  43.120-36×4÷18+35
  44.(58+37)÷(64-9×5)
  45.(6.8-6.8×0.55)÷8.5
  46.0.12× 4.8÷0.12×4.8
  47.(3.2×1.5+2.5)÷1.6
  48.6-1.6÷4= 5.38+7.85-5.37=
  49.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
  50.6.5×(4.8-1.2×4)=
  51.5.8×(3.87-0.13)+4.2×3.74
  52.32.52-(6+9.728÷3.2)×2.5
  53.[(7.1-5.6)×0.9-1.15] ÷2.5
  54.5.4÷[2.6×(3.7-2.9)+0.62]
  55.12×6÷(12-7.2)-6
  56.12×6÷7.2-6
  57.0.68×1.9+0.32×1.9
  58.58+370)÷(64-45)
  59.420+580-64×21÷28
  60.136+6×(65-345÷23)
  15-10.75×0.4-5.7
  62.18.1+(3-0.299÷0.23)×1
  63.(6.8-6.8×0.55)÷8.5
  64.0.12× 4.8÷0.12×4.8
  65.(3.2×1.5+2.5)÷1.6
  66.3.2×6+(1.5+2.5)÷1.6
  67.0.68×1.9+0.32×1.9
  68.10.15-10.75×0.4-5.7
  69.5.8×(3.87-0.13)+4.2×3.74
  70.32.52-(6+9.728÷3.2)×2.5
  71.[(7.1-5.6)×0.9-1.15] ÷2.5
  72.5.4÷[2.6×(3.7-2.9)+0.62]
  73.12×6÷(12-7.2)-6
  74.12×6÷7.2-6
  75.33.02-(148.4-90.85)÷2.5
  1) 76.(25%-695%-12%)*36
  77./4*3/5+3/4*2/5
  78.1-1/4+8/9/7/9
  79.+1/6/3/24+2/21
  80./15*3/5
  81.3/4/9/10-1/6
  82./3+1/2)/5/6-1/3]/1/7
  83./5+3/5/2+3/4
  84.(2-2/3/1/2)]*2/5
  85.+5268.32-2569
  86.3+456-52*8
  87.5%+6325
  88./2+1/3+1/4
  2) 89+456-78
  3) 5%+. 3/7 × 49/9 - 4/3
  4) 9 × 15/36 + 1/27
  5) 2× 5/6 – 2/9 ×3
  6) 3× 5/4 + 1/4
  7) 94÷ 3/8 – 3/8 ÷6
  8) 95/7 × 5/9 + 3/7 × 5/9
  9) 6/2 -( 3/2 + 4/5 )
  10) 8 + ( 1/8 + 1/9 )
  11) 8 × 5/6 + 5/6
  12) 1/4 × 8/9 - 1/3
  13) 10 × 5/49 + 3/14
  14) 1.5 ×( 1/2 + 2/3 )
  15) 2/9 × 4/5 + 8 × 11/5
  16) 3.1 × 5/6 – 5/6
  17) 4/7 - ( 2/7 – 10/21 )
  18) 19 × 18 – 14 × 2/7
  19) 5 × 25/16 + 2/3 × 3/4
  20) 4 × 8/7 – 5/6 × 12/15
  21) 7/32 – 3/4 × 9/24
  22) 1、 2/3÷1/2-1/4×2/5
  2、 2-6/13÷9/26-2/3
  3、 2/9+1/2÷4/5+3/8
  4、 10÷5/9+1/6×4
  5、 1/2×2/5+9/10÷9/20
  6、 5/9×3/10+2/7÷2/5
  7、 1/2+1/4×4/5-1/8
  8、 3/4×5/7×4/3-1/2
  9、 23-8/9×1/27÷1/27
  10、 8×5/6+2/5÷4
  11、 1/2+3/4×5/12×4/5
  12、 8/9×3/4-3/8÷3/4
  13、 5/8÷5/4+3/23÷9/11
  23) 1.2×2.5+0.8×2.5
  24) 8.9×1.25-0.9×1.25
  25) 12.5×7.4×0.8
  26) 9.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5
  0.35×1.6+0.35×3.4
  0.25×8.6×4
  6.72-3.28-1.72
  0.45+6.37+4.55
  5.4+6.9×3-(25-2.5)2×41846-620-380
  4.8×46+4.8×54
  0.8+0.8×2.5
  1.25×3.6×8×2.5-12.5×2.4
  28×12.5-12.5×20
  23.65-(3.07+3.65)
  (4+0.4×0.25)8×7×1.25
  1.65×99+1.65
  27.85-(7.85+3.4)
  48×1.25+50×1.25×0.2×8
  7.8×9.9+0.78
  (1010+309+4+681+6)×12
  3×9146×782×6×854
  5.15×7/8+6.1-0.60625
  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
  102×4.5
  7.8×6.9+2.2×6.9
  5.6×0.25
  8×(20-1.25)
  1)127+352+73+44 (2)89+276+135+33
  (1)25+71+75+29 +88 (2)243+89+111+57
  9405-2940÷28×21
  920-1680÷40÷7
  690+47×52-398
  148+3328÷64-75
  360×24÷32+730
  2100-94+48×54
  51+(2304-2042)×23
  4215+(4361-716)÷81
  (247+18)×27÷25
  36-720÷(360÷18)
  1080÷(63-54)×80
  (528+912)×5-6178
  8528÷41×38-904
  264+318-8280÷69
  (174+209)×26- 9000
  814-(278+322)÷15
  1406+735×9÷45
  3168-7828÷38+504
  796-5040÷(630÷7)
  285+(3000-372)÷36
  1+5/6-19/12
  3x(-9)+7x(-9
  (-54)x1/6x(-1/3)
  1.18.1+(3-0.299÷0.23)×1
  2.(6.8-6.8×0.55)÷8.5
  3.0.12× 4.8÷0.12×4.8
  4.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
  5.6-1.6÷4= 5.38+7.85-5.37=
  6.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
  7.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
  8.10.15-10.75×0.4-5.7
  9.5.8×(3.87-0.13)+4.2×3.74
  10.32.52-(6+9.728÷3.2)×2.5
  11.[(7.1-5.6)×0.9-1.15] ÷2.5
  12.5.4÷[2.6×(3.7-2.9)+0.62]
  13.12×6÷(12-7.2)-6
  14.12×6÷7.2-6
  15.33.02-(148.4-90.85)÷2.5
 3/7 × 49/9 - 4/3
  =7/3-4/3
  =1
  8/9 ×5/12+ 1/27
  =10/27+1/27
  =11/27
  12× 5/6 – 2/9 ×3
  =10-2/3
  =9又1/3
  8× 5/4 + 1/4
  =10+1/4
  =10又1/4、
  6÷ 3/8 – 3/8 ÷6
  =16-1/16
  =15又15/16
  4/7 × 5/9 + 3/7 × 5/9
  =(4/7+3/7)×5/9
  =1×5/9
  =5/9
  5/2 -( 3/2 + 4/5 )
  =5/3-3/2-4/5
  =1-4/5
  =1/5
  7/8 + ( 1/8 + 1/9 )
  =7/8+1/8+1/9
  =1+1/9
  =1又1/9
  9 × 5/6 + 5/6
  =(9+1)×5/6
  =10×5/6
  =25/3
  3/4 × 8/9 - 1/3
  =2/3-1/3
  =1/3
  (1/2+1/3-1/5)×30
  =1/2×30+1/3×30-1/5×30
  =15+10-6
  =19
 34×3.535-3.5×34.34
  =34×3.5×1.01-3.5×34×1.01
  =0
  8+89+899+8999+89999
  =9+90+900+9000+90000-5
  =99999-5
  =99994
  0.67×2.1+0.018×21+8.5×0.79
  =0.67×2.1+0.18×2.1+8.5×0.79
  =(0.67+0.18)×2.1+8.5×0.79
  =0.85×2.1+0.85×7.9
  =0.85×(2.1+7.9)
  =0.85×10
  =8.5
  22222.2×9.99999
  =22222.2×(10-0.00001)
  =222222-0.222222
  =222221.777778
  1997×19961996-1996×19971997
  =1997×1996×10001-1996×1997×10001
  =0
  0.02+0.04+0.06+0.08+……+19.94+19.96+19.98
  =(0.02+19.98)×999÷2
  =10×999
  =9990
  99999×77778+33333×66666
  =99999×77778+99999×22222
  =99999×(77778+22222)
  =99999×100000
  =9999900000
  (4又5/6-3又3/4)/(3/14+2/7)
  =13/12÷1/2
  =13/6
  =2又1/6
  (4.8/1又4/5+3又1/2+7又1/3)*4/9
  =(2又2/3+7又1/3+3.5)*4/9
  =(10+3.5)*4/9
  =13.5*4/9
  =6
  17.2/【(3又2/5-1.25)*2/3】
  =17.2/【2.15*2/3】
  =17.2÷43/3
  =1.2
  5*5又1/5
  =5*5+5*1/5
  =25+1
  =26
  (5又2/5-1.8)/[(1.15+13/20)*1又2/3]
  =3.6/[1.8*5/3]
  =3.6/3
  =1.2
  3又5/8*5又1/5+5又1/5*6又3/8
  =5.2*(3又5/8+6又3/8)
  =5.2*10
  =52
  [3/4-7/8/(5/6+4/5)]*28
  =[3/4-7/8÷49/30]*28
  =[3/4-15/28]*28
  =3/4*28-15/28*28
  =21-15
  =6
  (1.25*4/5-0.76)/(1又3/8+1又1/40)
  =(1-0.76)/2.4
  =0.24/2.4
  =0.1
  [(0.2+1/3)*4.5]/(8又1/20-6.45)
  =8/15*4.5/1.6
  =2.4/1.6
  =1.5
  x+3又2/3=5
  x*9又3/4=7又1/11 x/2/5=10
  6又2/3-x=4.25 6.4*1.7+6又2/5*8.3
  (4又6/7+1.75)/1又11/14+3又5/6
  2.16-7x=0.06
  1/2x-0.5=5又1/2
  8.16-1.26/0.3*1.5
  =8.16-4.2*1.5
  =8.16-6.3
  =1.86
  8.4*[(1.2+3又1/3)/3.4-1/2]
  =8.4*[68/16/3.4-1/2]
  =8.4*[5/4-1/2]
  =8.4*3/4
  =6.3
  5.8:x=3又1/2:7
  3.5x=7*5.8
  x=7/3.5*5.8
  x=2*5.8
  x=11.6
  3/10*55-4x=14.5
  16.5-4x=14.5
  4x=2
  x=0.2
  19.38-4又7/8-5又1/8
  =1.938-(4又7/8+5又1/8)
  =19.38-10
  =9.38
  13又7/13-(6又3/5+3又7/13)
  =13又7/13-3又7/13-6又3/5
  =10-6又3/5
  =3.4
  1又3/4+[2又3/14-(2又3/14-1.875)]/2又1/12
  =1又3/4-15/8*12/25
  =1又3/4-9/10
  =0.85
  (9.4-8又2/5)/[(1.1+1/15)*1又7/18]
  =1/[7/6*25/18]
  =1÷175/108
  =108/175
题目呢?
 2x+3x=60
  5x=60
  x=12
  3.6x-2.8x=12
  0.8x=12
  x=15
  100x-x=198
  99x=198
  x=2
  18x+2x=60(问题里弄成+60了是等号吧?)
  20x=60
  x=3
  5x+6x=12.1
  11x=12.1
  x=1.1
  6.6x-5x=8
  1.6x=8
  x=5
  4x-x=24
  3x=24
  x=8
  1.5x-x=1
  0.5x=1
  x=2
  1.9x+0.4x=9.2
  2.3x=9.2
  x=4
  25x-5x=10×20-5×20
  20x=100
  x=5
  80x-40=(30x+40)×2
  80x-40=60x+80
  20x=120
  x=6
  80x-3200=60x+1200
  20x=4400
  x=220
 2.8×4/5+8.2×4/5-4/5
  =(2.8+8.2-1)×4/5
  =10×4/5
  =8
  你好,本题已解答,如果满意
  请点右下角“采纳答案”。
⑷ 44乘25怎样简便计算
44×25
=11×4×25
=11×(4×25)
=11×100
=1100