(完整word)四年级数学巧算练习题(二)

1、四年级数学巧算练习题（：）79X 20-59 X 20=98X 78-48X 78=98X 1218X12=71X121X12=63 x 6-13X 6=92X77 82X77=54 X 68-24 X 68=67X2 27X2 =15X 69+15 =753X59+753 =917X 49+917 =99X 30-79X30=89X 30-29X 30=64 x 8-34X 8=50X 11 20X 11 =981X9+981 =224X 49+224 =98X 86-48X86=605X 89+605 =68 X 28-38X 28=949 X 59+949 =89X 3-79X 3=54

2、X 35-34X 35=67X 6227X62=45X 29- 15X 29=85 X 43-65X 43=44 X 13- 14X13=665X 89+665 =53 X 16-23X 16=83X 94- 33X94=97X 64- 77 X 64=94X 57-44X 57=744X19+744 =四年级数学巧算练习题（：）96 X 98-66 X 98=93X8643X86=54 X 4244X42=70X 9+70 =296X79+296 =65X 54- 55X54=61X24 11X24=90 X 60-30X 60=91X85 81X85=484X59+484 =96 X 63

3、-86 X 63=130X39+130 =95X15 65X 15=89 X 64- 49X 64=84X21 14X21 =65X 32-55X 32=62X44 2X44=60X23 10X23=95X 695X69=41X64 31X64=59X 96-49X96=84 X 25-64 X 25=68X20 28X20=61X57 51X57=848 X 19+848 =737X 39+737 =42X612X6=87X 78-47X 78=95X7945X79=187X59+187 =72X18 12X18=598X 29+598 =82X16 62X16=四年级数学巧算练习题（二）9

4、1X94 51X94=88X26 78X26=85X26 15X26=78X14 48X14=85X95 25X95=79X29 9X29=36X616X6=35 X 12-25X 12=42X54 2X54=22X29 2X29=90 X 60-0X60=66X8246X82=66 X 19-36 X 19=60 X 83-20X 83=98X18 28X 18=84 X 98-34 X 98=72X552X5=59X 17-29X 17=12X23 2X23=71X10 21X10=74X56 34X56=33X83X8=41X8211X82=87X65 47X65=82X642X6=85

5、X73 55X73=60X10 30X 10=40X73 10X73=56X83 16X83=58X29 48X29=71X50 41X50=13X66 3X66=71X25 51X25=70X27-60X27=75X20-15X20=96X82-6X82=32X5-12X5=93 X 65-53X 65=87X92-17X92=74X60-34X60=96X45-76X45=80X76-30X76=979X49+979 =68X78-28X78=88X21-68X21 =238X29+238 =98X76-18X76=73X34-33X34=99X24-89X24=49X47-9X47=64

6、X5-34X5=98X7-78X7=76X51-6X51 =78X15-38X 15=75X37-45X37=86X6-36X6=84X45-64X45=87X89-47X89=87X99-77X99=42X59+42 =91X58-1X58=72X44-12X44=67X85-7X85=77X60-67X60=97X41-27X41 =57X76-7X76=30X 28-20X 28=71X50 11X50=81X36 51X36=165X 39+165 =97X39 37X39=53X21 43X21 =85X 62-35X 62=79X99 9X99=95X50 5X50=60X 7-3

7、0X 7=30X810X8=95X3285X32=99X 35- 19X 35=91X1221X12=81X651X6=95X 73-25X 73=21X26 1X26=82X80 52X80=50X 11 0X11 =72X34 2X34=73X823X82=64 X 14-24 X 14=681X89+681 =894X59+894 =72X58 22X58=89X87 39X87=88X 23-8X23=96X30 56X30=70X43 0X43=84 X 9244X92=40X47 20X47=57X65 27X65=68X 90-48X90=31X7211X72=75X73 15X

8、73=95X 95X9=91X9231X92=63X9843X98=833X 49+833 =96 X 60- 16X 60=56X2546X25=98X 26-28X26=87X 40-27X 40=87X60 17X60=12X90 2X90=96 x 21-26X 21 =60 X 90- 10X 90=425X59+425 =95X 19-65X 19=80 x 61-70X 61 =86X79 46X79=76 x 91-46X 91 =63 X 94- 3X94=91X831X8=64X 79-44X 79=36 X 2 6X2=82X642X6=89X 78- 19X 78=35

9、X49+35 =97X 43-27X43=90X 980X98=848X 89+848 =79X 49-39X49=52X19 22X 19=69 X 29-29X 29=96X97 46X97=99X 78-89 X 78=32X25 12X25=86X20 46X20=55X 25-5X25=82X26 72X26=65X31 45X31 =22X14 12X14=85X 10 35X 10=77X 21 7X21 =92X71 62X71 =98 X 15-78X 15=63X65 13X65=75X 75- 15X 75=48X 55-8X55=96X34 46X34=80X 33-1

10、0X 33=43 X 97-3X97=95X74 35X74=99X 7-29X 7=79X6269X62=739X29+739 =85X 34-35X 34=97 X 63-57X 63=89X 68-49X68=88X 25-18X 25=50X14 30X14=73X 70-53X70=710X 79+710 =87 X 63- 17X 63=92X98 22X98=97X 91-47X 91 =82X43 52X43=49X87 39X87=94 X 29-64 X 29=99X9779X97=16X 35-6X35=40X 34- 30 X 34=88X548X5=94 X 14-4

11、4X14=79X23 39X23=41X7211X72=40X 80X8=52X10 22X 10=46X59 6X59=36X926X9=88X 68- 18X 68=12X92X9=97X 15- 17X15=93X 96-3X96=61X4241X42=55X 57-35X57=53X67 3X67=73 X 36-33X 36=72X88 2X88=87X83 47X83=85 X 64- 45X 64=13X823X82=77X89 7X89=97X 5-17X 5=66X626X62=83X98 33X98=44X 85-34X 85=79X7219X72=77X28 57X28=

12、64X 99-44X 99=57X 36-7X36=50X 45-40 X 45=90X41 20X41 =72X4212X42=72X3222X32=83X63 63X63=44 X 53-4X53=80X 56-40 X 56=86 X 60-6X60=83X13 63X 13=30X 1-10X 1 =74 X 21-64X 21 =65X16 45X16=56 x 19-36X 19=564X 89+564 =48X99 8X99=96 X 87- 16X 87=88 X 90-48X 90=56X416X4=93X 50-33 X 50=70 x 6-20X 6=98X93 38X9

13、3=63X 80-53 X 80=83 x 5-33X 5=51X38 1X38=76 X 86-56 X 86=40 X 95-30X 95=92X9232X92=45X 53-25X 53=67X 82-17X 82=86X10 16X10=57X 66-7X66=77 X 23-57X 23=75X18 15X18=83X 95-33 X 95=75 X 49-35X 49=55X 78-35X78=99X 27-79 X 27=92X7242X72=48X 81 8X81 =96 x 4-76X 4=59 X 89-9X89=95X 98-65X98=21X5311X53=73 X 3

14、8-3X38=52X75 32X75=66 X 27-46 X 27=84X24 74X24=67X64 27X64=65X68 25X68=62X76 32X76=90X36 50X36=79X24 59X24=95 X 64- 75X 64=21X14 1X14=36X80 16X80=80 X 93-40X 93=64X61 14X61 =83X9213X92=98 X 17- 18X 17=67X55 17X55=75X31 55X31 =33 x 1-13X 1 =98X87 28X87=73X 40- 13X 40=57 X 24- 17X 24=94X80 44X80=92X47

15、 42X47=58X93 8X93=47X8 27X8=68X64 38X64=91X38 51X38=33X10 23X 10=79X94 49X94=87X50 57X50=21X61 1X61 =86X68 46X68=63X7443X74=84 X 1254X12=71X14 31X14=51X63 11X63=61X81 11X81 =376X59+376 =46X86 16X86=84X4274X42=77X41 67X41 =23X2 3X2=82X59 22X59=92X33 72X33=65X70 35X70=94X35 44X35=95X31 65X31 =939X 19+

16、939 =74X60 14X60=62X74 42X74=96X98 56X98=82X98 52X98=31X47 1X47=86X40 6X40=79X59 29X59=80X 47-50 X 47=87 X 10- 17X 10=53X 623X62=91X9971X99=71X61 31X61 =49X 47-29X47=81X86 41X86=66 X 94- 36 X 94=74X21 4X21 =53X623X62=99 X 14-29X 14=93X 19-3X19=96X49 36X49=60 x 12-20X 12=58X 95-8X95=50X23 40X23=54 X

17、19-34 X 19=91X74 51X74=97X377X3=74 X 69- 14X 69=67X79 47X79=69X31 19X31 =86 X 68-36 X 68=99X35 69X35=50X26 20X26=96 x 12-46X 12=70X73 0X73=99X 1-29X 1 =68 X 25-38X 25=41X39 31X39=51X921X92=40 X 26-30X 26=90X55 60X55=90X 38-20X 38=462X29+462 =57X 69-37X69=74 X 8-54X 8=92X41 12X41 =82X9+82 =28X 988X98

18、=721X69+721 =91X19 1X19=95X 21-25X 21 =80X99 20X99=285X19+285 =66 x 99-16X 99=253X29+253 =213X89+213 =24 X 28-4X28=985X 9+985 =211X49+211 =92X40 52X40=508X 19+508 =701X49+701 =66X67 6X67=81X99 11X99=37X1 7X1 =42X34 2X34=898X 89+898 =846X89+846 =81X711X7=884X 49+884 =598X 59+598 =78X31 58X31 =93X 54-

19、 13X 54=79X 21 19X21 =51X98-21X98=52X29+52 =261X29+261 =263X19+263 =944X9+944 =30X93-0X93=388X79+388 =70X79+70 =26X39+26 =64X97-54X97=60 X 19+60 =42X5-22X5=344X69+344 =137X29+137 =44 X 19+44 =80X25-50X25=301X79+301 =595X39+595 =311X89+311 =85X25-25X25=11X49+11 =90X31-10X31 =95X91-55X91 =67X44-27X44=

20、33X37-13X37=610X39+610 =94X36-64X36=93X38-13X38=81X35-21X35=682X29+682 =91X32-1X32=88X54-68X54=503X89+503 =四年级数学巧算练习题（：）854 X 9+854 =94X 924X92=69X 21 49X21 =77X 4-57X 4=353X 89+353 =81X57 41X57=120X49+120 =72X66 62X66=533X 39+533 =75X15 55X 15=568X 19+568 =383X 69+383 =932X69+932 =96X65 36X65=95X 5

21、9-35X59=128X 69+128 =63 X 24- 3X24=636X 49+636 =69X 97-59X 97=912X 69+912 =76 X 28-26X28=573X 9+573 =21X6211X62=410X 69+410 =261X79+261 =374X 9+374 =81X77 61X77=296X 29+296 =74 X 17-44 X 17=678X 49+678 =86 X 63-26 X 63=639X 79+639 =93X 85-53X85=94 X 424X42=95X77 5X77=66 X 66-56X66=80X 4-20X 4=65 X 2

22、7-15X 27=43X 64- 13X64=92X552X55=35X10 15X10=83X 96-3X96=434X69+434 =39 X 89+39=650X 59+650 =652X9+652 =81X331X3=99X 74- 39X74=807X19+807 =380X 29+380 =73X 4-33X 4=72X24 62X24=89 X 10-69X 10=639X 79+639 =91X31 31X31 =78 x 1-18X 1 =583X 49+583 =167X89+167 =946X 59+946 =99X 56- 19X56=86X39 6X39=80 X 1

23、4-60X 14=70X 15- 10X15=98X2 8X2=275X 59+275 =702 X 59+702 =791X19+791 =980X 49+980 =820X 79+820 =97X61 77X61 =66 X 27- 16X 27=295X 29+295 =167X 59+167 =59 X 47-9X47=91X81X8=61X84 11X84=91X85 11X85=275X 9+275 =84 X 14-4X14=409X19+409 =78X 3-68X 3=915X29+915 =273X9+273 =337X 19+337 =994X59+994 =18X 69

24、+18 =49X 63-9X63=95X 45X4=656X 79+656 =560X 49+560 =604 X 49+604 =60 X 80- 10X 80=96 X 56-6X56=48X 45-38 X 45=373X 39+373 =98X 64- 58X64=768X 9+768 =59 X 42-19X 42=144X 59+144 =四年级数学巧算练习题（二）36 x 21-16X 21 =71X16 21X16=92X60 12X60=950X 9+950 =356X 29+356 =73X 63- 13X63=94 X 41-24X 41 =503X 69+503 =97

25、X 89+97 =91X26 61X26=83 X 43- 13X 43=99X 14-59X14=99X71 9X71 =551X69+551 =57X 40-7X40=548X49+548 =73 X 47- 13X 47=64 X 7-24X 7=68X 65-38 X 65=740X 29+740 =963X 79+963 =239X 79+239 =746X 69+746 =441X19+441 =693X 59+693 =302X 49+302 =76 X 87-56X87=692 X 79+692 =486X 49+486 =833X 39+833 =76X 97-36X 97=

26、51X6441X64=76 X 98-26X98=99X 48-9X48=66 x 61-56X 61 =94 X 38-34X38=77X2 37X2 =87 X 10-47X 10=897X 19+897 =95X 57-5X57=94X 97-74X 97=99X 40-39X40=138X 89+138 =54 X 31 4X31 =39X 30-29X30=723X 59+723 =60 X 39+60=63X 27-23X27=93X 57- 13X 57=68 X 25-58X 25=95X86 5X86=32X20 22X20=732X 29+732 =31X60 1X60=9

27、71X79+971 =88 X 34- 68X 34=374X29+374 =92X122X12=58 X 29-38X 29=81X1231X12=64X77 54X77=44 X 2-14X 2 =41X66 11X66=699X 79+699 =68 X 33-8X33=66X46 56X46=968X 69+968 =73 X 88-23X 88=97X 69- 17X69=569X 79+569 =98 X 97-8X97=87X 95-7X95=73X 89-33 X 89=397X59+397 =61X69 1X69=85X 99-25X 99=70 X 26-20X 26=34

28、X56 14X56=44 X 48-34 X 48=68 X 27-28X 27=87X94 27X94=128X 29+128 =198X 19+198 =35X39 5X39=98X 9-48X 9=98 x 6-88X 6=78X38X3=534 X 39+534 =79X 74- 29X 74=96X81 56X81 =90X 18-70 X 18=876X 89+876 =52X50 32X50=529X 89+529 =35 X 29+35 =651X49+651 =95X 18-35 X 18=72X73 52X73=40X510X5=86X71-36X71 =750X29+75

29、0 =66X77-16X77=43X92-3X92=857X49+857 =68X99-8X99=55X 145X 14=93X33-53X33=88X3-18X3=46X92-6X92=193X79+193 =96X68-16X68=90X28-10X28=641X39+641 =841X59+841 =560X39+560 =92X69-2X69=77X34-17X34=81X33-1X33=55X3-5X3=97X64-47X64=84X48-24X48=427X49+427 =82X98-12X98=51X45-11X45=853X39+853 =966X69+966 =56 X 646 X 64=657X69+657 =77X29+77 =561X59+561 =748X49+748 =519X19+519 =96X27-26X27=67X72-17X72=99X92-19X92=28X27-8X27=98X52-8X52=88X73-8X73=40X53-20X53=34X67-24X67=74X98-34X98=82X93-2X93=503X79+503 =64X65-14X65=159X89+ 159 =84X37-4X37=80X75-0X75=97X41-57X41 =94X23-34X23=535X39+535