四年级巧用乘法分配律(一)(600道)

1、四年级巧用乘法分配律（一）（600 道）46X39-26X 39 = 64X92-34X92 = 95X21-55X21 =37X97X9 =51 X4-41 X4 = 94X9734X 97 = 18X88-8X 88 =93X27-13X27 =71 X79 21X 79 = 87X72-47X 72 =80 X 15-10X 15 = 90X91-60X 91 = 58X60-38X60 =80X47-20X47 = 39X90-19X 90 = 68X2-38X2 = 18X24-8X24 =85X39-25X 39 = 79X29-19X29 =50X 18-20X 18 = 79X

2、93 19X 93 = 65X27-45X27= 88X7628X 76 =81 X2-61 X2 = 93X71-43X 71 = 64X33 14X 33 = 46X25- 16X25 = 56X51-6X51 =81 X 8921X 89 = 53X73- 13X 73 =90X30-60X 30 = 57X96-27X 96 = 33X99-23X 99 = 54X8-34X8 = 15X74-5X74 = 66X7456X 74= 88X82-68X 82 = 66X64-56X64 =96X5-16X5 =71 X8 11 x 8 = 84X38-34X 38 =99X89-39X

3、 89 = 94X89-34X 89 = 62X56-2X 56 =82 X 17-2X 17 =96 X 14-66X 14 = 93X52-63X52 =91 X74 61 X 74 = 70X80-10X80 = 86X47-16X47 = 46X41-16X41 = 49X81-29X 81 =81 X72-11 X 72 = 381 X 29+381 =99X80-89X 80 = 84X72-44X72 = 289X39+289 =52X86-42X86 = 82X98-62X98 = 82X77-42X 77 =45X66-35X66 = 46X166X 16 = 88X7038

4、X 70 = 53X95-3X 95 = 89X39-39X 39 = 39X72 19X 72 = 57X25-47X25 = 63X93-23X 93 =76X80-6X80 = 97 X 17-47X 17 = 60X72-0X72 = 66X78-6X78 =93X36-83X 36 = 42X7432 X 74= 54X7234X 72 = 92X6-62X6 = 45X825X 82 =41 X 7921X 79 = 29X83-9X83 =831 X 9+831 = 49X23-39X23 = 73X35-43X 35 =12X97-2X 97=84X86-14X86 =52X9

5、0-42X90 =52X89-32X89 =82X72 22X 72 =86X51-6X51 =61 X96-41 X96 =833X9+833 =67X92-17X 92 =72X812X8=22 X 15-12X 15 =48X59-8X 59 =59X91-9X91 =78X50-8X 50 =49X55-39X 55 =629X39 + 629 =30X98-0X 98 =94X97-24X 97 =11 X20-1 X20 =31 X38-11 X 38 = 93X52-63X52 =81 X89-51 X 89 =62X67-2X67 = 90X52 10X 52 = 85X61-

6、15X61 = 90X98-40X 98 =80X18-0X 18 = 52X98-2X98 =75X78-45X 78 = 44X71-14X71 = 70X28-50X28 = 92 X 14-52X 14 =78X56-58X 56 = 92 X 19+92 =48X94-38X 94 = 61 x 64 1 X64 =72X28 12X28 = 81 X 7441 X 74= 54X99-4X99 =43X25- 13X25 = 251 X 29+251 =86X51-16X51 = 34X60-4X60 =95X34 15X 34 =42X73-2X 73 = 75X90 65X 9

7、0 =48X38-38X 38 = 40X62-20X62 =599X69+599 =41 X50-1 X 50 = 83X55-3X 55 =54X37-24X 37 = 94X42-44X42 = 52X64-32X64 =39X56-29X 56 = 89X72-79X 72 =66X65-26X65 = 61 X53-11 X 53 = 71 X82-11X 82 = 89X24-39X24 = 78X86-58X86 = 30X90-0X 90 =22X65-12X65 = 99X2-59X2 = 60X34-0X 34 =60X79-30X 79 =93X62-83X62 = 86

8、X25-66X25 = 73X78-3X78 =86X52-66X 52 = 82X40 12X40 = 99X25-79X25 = 35X67-25X67 = 28X85-8X85 = 49X94 19X 94 = 81 X66- 11X66 = 66X9-36X9 = 15X39+ 15 = 62X34-2X34 = 97X92-47X 92 = 97X51-17X51 = 80X96-50X 96 = 20X80-0X 80 = 86X97-6X97 = 94X93 14X 93 = 71 X22-51 X22 = 91 X68- 11X68 = 34X81-4X81 =26X96-16

9、X 96 = 81 X42-71 X42 = 66X51-26X51 = 80X78-30X78 = 64X29-14X29 = 84X 1-74X 1 =93X3-43X 3 = 42X28-2X28 = 49X76-39X 76 = 82X63-52X63 = 48X21-38X21 = 84X53-24X 53 = 87X52-7X 52 =686X79+686 =99X92-49X92 = 87 X 16-27X 16 = 97 X 16-37X 16 = 79X41-19X41 = 42X84-12X84 = 66X92-46X92 = 725X59+725 =79X95-29X 9

10、5 =54X8444X 84 = 93X31-3X31 = 52X54-42X54 = 95X22-45X22 = 74X47-34X47 = 78X71-38X 71 = 97X7-37X7 = 52X41-2X41 = 62X48-32X48 = 80X 1-30X 1 =92X64- 12X64 = 59X33-9X33 =74 X 19+74 = 167X49+167 = 40X79+40 =376 X 19+376= 877X39+877 = 212X39 + 212 = 82X89+82 = 43X1-33X 1 = 63X7453X 74 = 95X75-45X 75 =547X

11、89+547 = 93 X 19+93 = 79X85-49X 85 = 554X49+554 = 42X39 + 42 =93X27-23X27 = 90X80-10X 80 = 176X29+176 = 378X69+378 = 595X89+595 = 82X56-22X 56 = 60X69-20X69 = 217X79 + 217 = 769X9 + 769 = 95X71-5X71 = 72X9412X 94 = 77X73-7X 73 = 141 X 69+141 = 924X69 + 924 = 896X59+896 =90X 11-30X 11 = 434 X 19 + 43

12、4 =71 X 95 1 X95 = 78X29- 18X29 = 80X80-0X80 =92X73-22X 73 = 390X69 + 390 = 984X59 + 984 =86X58 16X 58 = 489X59 + 489 =57X51-27X 51 = 58X57 18X 57= 94X9344X 93 =190X29+190 = 123X39+123 = 39X44-9X44 = 70X74-60X 74 = 76X50-46X 50 = 91X15-1X15 =132X59+132 =74X39+74 =302X9+302 = 352X29+352 = 60X27-40X27

13、=772X59 + 772 = 64X45-14X45 = 97X29-37X29 = 93X92-3X 92 = 48X81-18X81 = 914X9+914 =79X34-29X 34 = 720X69+720 = 549X89+549 =622X49 + 622 = 97X72-67X 72 =268X69+268 = 66X39-36X 39 = 179X79+179 = 276X79 + 276= 115X 19+115 = 777X89 + 777 = 32X24 2X24 =566X39+566 =98 X 12-78X 12 = 60 X 14-30X 14 = 88X61-

14、38X61 =91X17-71X17 = 91 X20- 1X20 = 94X3-4X3 = 986X69 + 986 = 94X26- 14X26 = 94X5-4X5 = 92X 1-22X 1 = 69X85-9X85 = 91 X62- 1X62 = 289 X 19 + 289 = 42X34-32X 34 = 828X59+828 = 35X40-5X40 = 92X54-2X54 = 912X9+912 =971 X 59 +971 = 371 X 9+371 = 93X93 13X 93 = 68X69- 18X69 = 975X79+975 = 931 X 79 +931 =

15、 89X93-49X 93 =91X5-21X5 =64X75-14X 75 =98X51-78X 51 =950 X 19+950 =72X94-32X 94 =77X26-47X26 =575X79+575 =512X9+512 =76X47-26X47 =85 X 19-5X 19 = 45X80-35X 80 =73X47-23X47 =436X29 + 436 =145X29+145 =91 X50-11 X 50 =697X59 + 697 =81 X26-61 X26 =480X49 + 480 =74X35-24X 35 =99X93-69X 93 =82X8212X 82 =

16、31 X58-11 X 58 =930X9+930 =602X69+602 = 55X23-5X23 =85X3-25X 3 = 646X59 + 646 =422 X 19 + 422 = 275X 19 + 275 =92X28-72X28 = 70X60-50X60 = 93X63-3X63 = 26X76-6X76 =965X59 + 965 = 47X74-7X74 =98X35-88X 35 = 965X49 + 965 =78X86- 18X 86 = 92X41 2X41 =71 X62-21 X62 = 80X73-40X 73 = 494X9+494 =64X3544X 3

17、5 = 593X29 + 593 =76X78-36X 78 = 104X9+104 = 83X56-33X 56 = 562X9 + 562 = 96X94-56X94 = 235X69+235 = 777X69 + 777 = 92X58-32X58 = 57X49-17X49 = 94X77-64X 77 = 944 X79+ 944 =621X29 + 621 = 778 X 19+778 = 67X97-7X 97= 231 X 89+231 = 944 X79+ 944 = 32X76-2X 76= 83X72-13X 72 = 48X9+48 =88X22-38X22 = 613

18、X29+613 = 908X89+908 =95X60-25X60 = 62X70- 12X 70 = 68X49-38X49 = 654 X 19 + 654 = 32X84-2X84 = 54X50-34X 50 = 961 X 39 +961 = 80X84-0X84 = 657X29 + 657 = 10X31-0X31 = 91 X32-21 X 32 = 827X49 + 827 = 560X59 + 560 = 24X43-4X43 = 451 X 89 + 451 = 35X34-25X 34 = 81 X20- 1 X 20 = 676X89 + 676 = 595X69 +

19、 595 = 48X39+48 = 36X36- 16X 36 = 102X29+102 =521X49 + 521 =807X29 + 807 = 95X21-35X21 =56X76-36X 76 = 79X74-9X 74 = 937X79+937 = 99X65-9X65 =89X56-69X 56 = 71 X43-21X43 = 318X89+318 = 908X39+908 =88X87-8X 87 = 90X45-60X45 =81 x 4951 X 49 = 50X27-40X27 =88X35-28X 35 = 79X6-19X6 = 19X769X 76= 96X54-6

20、6X54 =99X72-49X 72 = 990X79+990 = 92X46-32X46 =24X27-4X27 = 88X33-8X33 =77X30-7X30 = 98X79-68X 79 =44X9024X 90 = 600X89 + 600 = 36X63-6X63 =58X13-18X 13 = 79X49-69X49 =92X93-62X 93 = 82X97-32X 97 =73X57-63X 57 = 65X34-25X 34 =32X82-22X 82 = 89X62- 19X62 = 31 X22- 11X22 =61 X3-31 X3 = 82 X 18-42X 18

21、=71 X6-21X6 = 83X30-3X30 =77X69-27X69 = 500X49 + 500 =51X51-1X51 = 23X96-3X 96 =63X36-23X 36 = 72X94 2X 94 =92 X 12-12X 12 = 22X68-2X68 =91 X63-51 X63 = 31 X88-1 X 88 =85 X 15-65X 15 = 729X69 + 729 =99X60-19X60 = 87X92-57X 92 = 40X58-30X 58 =21 X64-1 X64 = 64 X 14-4X 14 =55X29-45X29 =60X5-10X5 =51 X

22、 4331 X 43 = 80X48-20X48 =45X54-5X54 = 168X79+168 =32X4012X40 =64X8-24X8 =62X40 12X40 =85X97-5X97 =44X21-4X21 =34X84-24X 84 =65X96-5X96 =71 X51- 11 X 51 =283X39 + 283 =99X56-49X 56 =216X69 + 216 =89X89-59X 89 =67X23-7X23 =88X77-8X77 =571 X 39+571 =80X48-40X48 =78X55-68X 55 =79X96-39X 96 = 76X27-36X2

23、7 =51 X39- 11X 39 =99X9-69X9 =39X9-29X9 =61 X 66 1 X66 =72X55-42X 55 = 81 X5411 X54 = 64X75-54X 75 = 74X74- 14X74 =46X8-36X 8 = 72X46-22X46 =66X71 -46X71 = 85X57-35X 57 =62 X 12-12X 12 = 22X66-2X66 =72X8412X 84 = 75X98-45X 98 = 75 X 13-25X 13 = 57X8-17X8 =97X90 47X 90 = 22 X 16-12X 16 =40X86-20X 86

24、= 88X41-78X41 = 59X71-9X71 =94X9-54X 9 = 77X89-67X 89 =72X3-52X 3 =94X75-64X 75 = 69X92-9X92 =61 x22- 11X22 = 84X65-24X65 = 82X292X29 = 75X8-35X8 = 68X3-28X3 =67 X 14-27X 14 = 63X69-33X69 = 75X165X 16 = 66X7 16X7 = 44X5724 X 57 =56X63-36X63 = 95X53-85X 53 = 55X66-35X66 = 13X56-3X56 = 97X83-87X 83 =9

25、0X50-30X 50 = 20X61-10X61 = 89X739X 73 =91 X 3071 X 30 = 93X71-33X 71 =62 X 16-22X 16 = 78X56-8X 56 = 56X22-26X22 = 83X28-33X28 = 60X69-0X69 = 87X60-7X60 =99X82-69X 82 = 34X 1-24X 1 =65X3-35X 3 = 63X40-23X40 = 94X57-24X 57 = 91 X53-1 X 53 = 60X22-20X22 = 822X89+822 = 99X 1-39X 1 =86X31-26X 31 = 61 X95-21 X 95 = 85X43-25X43 = 66X8-36X 8 =70X67-30X67 = 80X88-30X 88 = 84X8-64X8 =