数学简便运算(要写步骤）
7又5/6-5又1/3+(2又1/4-4又2/4)
=7+5/6-5-2/6-2-1/4
=2+1/2-2-1/4
=1/4
***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation. ***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation. ***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation. ***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation. ***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation. ***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation. ***** Please scroll to the end of *****
***** this document for the results. *****
S3Iset32 v2.00.16-0603, (S3GSetup/IS10 2.00.16-0603)
System: 葼 Build 2600 (Service Pack 2)
Signature: 15-9956 (ANSI)
Caller cmdline: ''
SupportDir: 'C:\DOCUME~1\ADMINI~1.C1B\LOCALS~1\Temp\S3MF.tmp\'
Called by custom setup app.
AllowReboot: TRUE
Prompt: TRUE
SilentReboot: TRUE
Prompt: FALSE
RemoveWinINF: FALSE
PreInstFiles: FALSE
No UI Reboot: FALSE
MenuAnimOff: FALSE
MenuShadowOff: FALSE
Find VendorID: 5333
Driver INF at: G:\K8M800_16944421_XP_WIShld_logod\uc03i.inf
Find hardware code->0
Custom uninstall info: C:\WINDOWS\UChromeP.uns
Hardware found - Ven:1106 Dev:7205 Ssven:1019 Ssdev:1898 Rev:01 Location: bus 1 dev 0 func 0 (InVga=1)
************** Begin Win2K/XP Driver Install **************
Enum GUID {4d36e968-e325-11ce-bfc1-08002be10318} devs to match '':
Enum done.
Could not find enum device to match hardware.
Enumerating all Enum\PCI registry entries...
Device #0 subkey: "VEN_1106&DEV_0571&SUBSYS_18981019&REV_06"
Device #1 subkey: "VEN_1106&DEV_3038&SUBSYS_18981019&REV_81"
Device #2 subkey: "VEN_1106&DEV_3059&SUBSYS_18981019&REV_60"
Device #3 subkey: "VEN_1106&DEV_3065&SUBSYS_01021106&REV_78"
Device #4 subkey: "VEN_1106&DEV_3104&SUBSYS_18981019&REV_86"
Device #5 subkey: "VEN_1106&DEV_3149&SUBSYS_18981019&REV_80"
Device #6 subkey: "VEN_1106&DEV_3205&SUBSYS_00000000&REV_00"
Device #7 subkey: "VEN_1106&DEV_3227&SUBSYS_00000000&REV_00"
Device #8 subkey: "VEN_1106&DEV_7205&SUBSYS_18981019&REV_01"
Found matching hardware!
Found Inst=PCI\VEN_1106&DEV_7205&SUBSYS_18981019&REV_01\4&1feb96e4&0&0008.
Found Mfg line: 'VIA.Mfg'.
Ln 0: 'viagfx_3204,PCI\VEN_1106&DEV_3108'
#################################################
!! INF does not describe detected hardware!!
Device or vendor ID (or subsystem) mismatch!!
#################################################
StopTimer OK, but no timer action occurred.
-> Setup was unable to complete the installation.
=66.86-(8.66+1.34)
=66.86-10
=56.86
17.8/(1.78*4)
=17.8/1.78/4
=10/4
=2.5
3.65*10.1
=3.65*(10+0.1)
=3.65*10+3.65*0.1
=36.5+0.365
=36.865
15.2/0.25/4
=15.2/(0.25*4)
=15.2/1
=15.2
7.2*0.2+2.4*1.4
=2.4*3*0.2+2.4*1.4
=2.4*0.6+2.4*1.4
=2.4*(0.6+1.4)
=2.4*2
=4.8
18-1.8/0.125/0.8
=18-1.8/(0.125*0.8)
=18-1.8/0.1
=18-18
=0
0.79*199
=0.79*(200-1)
=0.79*200-0.79*1
=158-0.79
=157.21
3.9/(1.3*5)
=3.9/1.3/5
=3/5
=0.6
0.35*1.25*2*0.8
=(0.35*2)*(1.25*0.8)
=0.7*1
=0.7
15/0.25
=15/(0.5*0.5)
=15/0.5/0.5
=30/0.5
=60
66.86-8.66-1.34 =66.86-(8.66+1.34)=66.86-10=56.86
17.8/(1.78*4)=17.8/1.78*(1/4)=2.5
3.65*10.1=3.65*(10+0.1)=3.65*10+3.65*0.1=36.5+0.365=36.865
15.2/0.25/4=15.2/(0.25*4)=15.2/1=15.2
7.2*0.2+2.4*1.4 =2.4*3*0.2+2.4*1.4=2.4*(3*0.2+1.4)=2.4*2=4.8
18-1.8/0.125/0.8 =18-1.8/(0.125*8)=18-18=0
0.79*199=0.79*(200-1)=0.79*200-0.79*1=158-0.79=157.21
3.9/(1.3*5) =3.9/1.3/5=3/5=0.6
0.35*1.25*2*0.8 =0.7*1=0.7
15/0.25=15/(1/4)=15*4=60
1.=66.86-（8.66+1.34）=56.86
2.=(17.8/17.8)/4=1/4
3.=3.65*10+3.65+0.1=36.5+0.365=36.865
4.=15.2/(0.25*4)=15.2/1=15.2
5.=2.4*3*0.2+2.4*1.4=2.4*(0.6+1.4)=4.8
6.=18-1.8/(0.125*0.8)=18-1.8/0.1=18-18=0
7.=0.79*(200-1)=158-0.79=157.21
8.=3.9/1.3/5=3/5=0.6
9.=(0.35*2)*(1.25*0.8)=1.7*1=0.7
10.=15/(0.25*4)*4=15*4=60
66.86-8.66-1.34 =66.86-(8.66+1.34)=66.86-10=56.86
17.8/(1.78*4) =(17.8/17.8)/4=1/4
3.65*10.1 =3.65*(10+0.1)=36.5+0.365=36.865
15.2/0.25/4=15.2/(0.25 *4)=15.2
7.2*0.2+2.4*1.4=2.4 *3*0.2+2.4*1.4=2.4*(0.6+1.4)=4.8
18-1.8/0.125/0.8 =18-1.8/(0.125*0.8)=18-1.8/0.1=0
0.79*199 =0.79*(200-1)=158-0.79=157.21
3.9/(1.3*5)=(3.9/1.3)/5=3/5
0.35*1.25*2*0.8=(1.25*0.8)*(0.35* 2)=1*0.7=0.7
15/0.25=15/(0.5*0.5)=(15/0.5)/0.5=60
66.86-(8.66+1.34)=66.86-10=56.86
17.8/1.78/4=10/4=2.5
3.65*(10+0.1)=36.5+0.365=36.865
15.2/(0.25*4)=15.2/1=15.2
2.4*3*0.2+2.4*1.4=2.4*0.6+2.4*1.4=2.4*(0.6+1.4)=4.8
18-1.8/(0.125*0.8)=18-1.8/0.1=18-18=0
0.79*(200-1)=158-0.79=157.21
3.9/1.3/5=3/5=0.6
(0.35*2)*(1.25*0.8)=0.7*1=0.7
60/4/0.25=60/(4*0.25)=60/1=60
66.86-8.66-1.34
=66.86-(8.66+1.34)
=66.86-10
56.86
17.8/(1.78*4)
=17.8/17.8*4
=4
3.65*10.1
=3.65*10+3.65*0.1
=36.5+0.365
36.865
15.2/0.25/4
=15.2/(0.25*4 )
=15.2/1
=15.2
7.2*0.2+2.4*1.4
=2.4*(0.6+1.4)
=2.4*2
=4.8
18-1.8/0.125/0.8
=18-1.8*10
=18-18
=0
0.79*199
=0.79*200-0.79
158-0.79
=157.21
3.9/(1.3*5)
=3.9/1.3/5
=3/5
=0.6
0.35*1.25*2*0.8
=(0.35*2)*(1.25*0.8)
=0.7*1
=0.7
15/0.25
=15*1/4
=15/4
=3.75
125×27×28如何脱式简便运算?
125×27×28=125×28×27=3500×27=94500这个脱式简便运算题，我们用到了乘法交换律，就是a×b=b×a，其实，乘法交换律我们可以拓展到三个数字以上的形式，就比如a×b×c=c×a×b，他们的结果都会保持不变的，在这个题中，我们观察发现，看见125，我们就要想到8，但是这个包不能从28里分出来，...
如何计算简便运算?
错误类型四：只看数，不看清运算符号，乱用简便方法，如：25×4÷25×4=100÷100=1；278－54+46＝278－100＝178。仔细分析,产生这些现象的原因，一是教学时，一味机械地进行程序化训练，形成错误的思维定势，对学生的思维方式产生了负迁移，只要貌似就用学过的方法牵强地套用，二是不会灵活运用。
67×203的简便运算怎么算?
67×203=67×(200+3)=67×200+67×3=13400+201=13601这个简便方法计算题用到了拆分数字的方法，再利用乘法分配律进行简算，通过观察发现，我们要把203拆分成200+3，式子就变成67×(200+3)，现在在根据乘法分配律分开，就是，67×200+67×3，再根据四则混合运算的顺序进行计算，67×200=13400，...
简便运算巧解题
1、在学习简便运算之前，先要了解一下一下知识内容 2、第一种情况：算式中只有同级运算分成两步来做 3、第二种情况：算式中有两级运算 4、注意事项 方法\/步骤 在学习简便运算之前，先要了解一下一下知识内容：1、同级运算和两级运算+、-、×、÷被称为四则混合运算，+、-被称为第一级运算，×...
数学简便计算,有哪几种方法
数学简便计算方法：一、运用乘法分配律简便计算 简便计算中最常用的方法是乘法分配律。乘法分配律指的是：ax(b+c)=axb+axc cx（a-b）=axc-bxc 例1：38X101，我们要怎么拆呢？看谁更加的靠近整百或者整十，当然是101更好些，那我们就把101拆成100+1即可。38X101 =38X（100+1）=38X100+38X1...
数学简便运算
简便计算主要有三大方法，分别是加减凑整、分组凑整、提公因数法。它采用数学计算中的拆分凑整思想，通过四则运算规律，从而简化计算。就像68+77=？大多数人不一定立刻能算出结果，如果换成70+75=？相信每一个人都可以一口算出和是145。这里其实就是把77拆分成2+75，68+77 =68+2+75 =70+75 =...
简便运算的技巧是什么?
简便运算方法大全 一、什么是简便运算 “简便运算”是一种特殊的计算，它运用了运算定律与数字的基本性质，从而使计算简便，使一个很复杂的式子变得很容易计算。二、简便运算大全 （一）、交换律（带符号搬家法）当一个计算题只有同一级运算（只有乘除或只有加减运算）又没有括号时，我们可以“带符号...
5乘289乘2的简便方法
5×289×2=5×2×289=10×289=2890这个简便方法计算题利用到了乘法交换律，也就是a×b=b×a，其实，乘法交换律可以拓展到三个数以上的形式，就是a×b×c=c×a×b，只要是在二级运算中，带着符号进行计算，都不会影响计算的结果，于是我们根据这个运算定律，就得到式子，5×2×289，再根据四...
8999×9999十18999怎么简便计算?
8999×9999+18999=8999×9999+8999+10000=8999×9999+1×8999+10000=8999×(9999+1)+10000=8999×10000+10000×1=(8999+1)×10000=90000000这个简便方法计算题，先用到了才分数字的方法，来找到公共因数，再用到了两次的惩罚分配律，看着数字非常大，让许多同学看起来就头疼，其实你只要通过观察发现...
四年级数学简便方法计算的口诀有吗?
简便运算的作用：通过练习，不仅使学生学会了单纯的简便运算，更重要的是，使学生初步理解了学以致用的道理，真正理解了书本上的知识必须运用到实际当中去的道理。简便运算是一种高级的混合运算，是混合运算的技巧，学好了简便运算，不仅能提高计算能力、计算速度，更重要的是，使学到的定义、定理、定律、...
苍待罗红： 7又5/6-5又1/3+(2又1/4-4又2/4) =7+5/6-5-2/6-2-1/4 =2+1/2-2-1/4 =1/4
威海市15697431630： 数学简便计算,要过程 - ？
苍待罗红： 2又2/5*73+91*7又3/5+1.8*24 =2.4*73+91*7.6+18*2.4 =2.4*(73+18)+91*7.6 =2.4*91+91*7.6 =91*(2.4+7.6) =91*10 =910
威海市15697431630： 小学简便运算,要写步骤! - ？
苍待罗红： 47.8+4.78*8.9=4.78*10+4.78*8.9=4.78*(10+8.9)=4.78*18.9=4.78*(20-1.1)=4.78*20-4.78*1.1=95.6-5.258=90.34220.64*1.8-17.2 =20.64*(2-0.2)-17.2 =20.64*2-20.64*0.2-(20-2.8) =41.28-4.128-20+2.8 =19.952
威海市15697431630： 一道数学题,简便计算要详细点过程 - ？
苍待罗红： =-3-15/17-9-1/2-2-10/37-2-12/37+10+1/2=-4-1=-5
威海市15697431630： 数学简便运算(要写步骤)66.86 - 8.66 - 1.3417.8/(1.78*4)3.65*10.115.2/0.25/47.2*0.2+2.4*1.418 - 1.8/0.125/0.80.79*1993.9/(1.3*5)0.35*1.25*2*0.815/0.25 - ？
苍待罗红：[答案] 66.86-8.66-1.34 =66.86-(8.66+1.34) =66.86-10 =56.86 17.8/(1.78*4) =17.8/1.78/4 =10/4 =2.5 3.65*10.1 =3.65*(10+0.1) =3.65*10+3.65*0.1 =36.5+0.365 =36.865 15.2/0.25/4 =15.2/(0.25*4) =15.2/1 =15.2 7.2*0.2+2.4*1.4 =2.4*3*0.2+2.4*1.4 =2.4*0.6+2.4...
威海市15697431630： 4/5 - 2/7*4/5 - 5/7*1/5六年级数学,简算请写出过程,简便计算 - ？
苍待罗红：[答案] 4/5-2/7*4/5-5/7*1/5 =4/5*(1-2/7)-5/7*1/5 =4/5*5/7-5/7*1/5 =(4/5-1/5 )*5/7=3/5*5/7=3/7
威海市15697431630： 数学算式 简便计算 请把过程写出来9分之二减16分之7乘9分之二 5分之二乘4乘4分之三 二分之一乘十五分之一加三分之一乘二分之一六分之五乘九分之五加... - ？
苍待罗红：[答案] 2/9-7/16*2/9=9/16*2/9=1/8 2/5*4*3/4=6/5 1/2*1/15+1/3*1/2=1/30+1/6=6/30=1/5 5/6*5/9+5/9*1/6=5/9 5/7*16*21/5=48
威海市15697431630： 简便运算567+98要写过程急急急急 - ？
苍待罗红：[答案] =567+(100-2) =(567+100)-2 =667-2 =665
威海市15697431630： 要用简便运算计算要写过程,2/1+4/5乘5/4 6/1 乘(5 - 3/2) 8/7乘7+8/3 - ？
苍待罗红：[答案] 2/1+4/5乘5/4 =2+1 =3 6/1乘(5-3/2) =6乘5-6乘3/2 =30-9 =21 8/7乘7+8/3 =8+8/3 =32/3
