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1、357+288+143 17+145+23+35 9998+3+99+998+3+9 517-5347 545167145 236(177+36)272+68+28 999+99+9+3 28415941 47847178 四年级下册数学简便计算题357+288+143 17+145+23+35 9998+3+99+998+3+9 517-5347 545167145 236(177+36)272+68+28 999+99+9+3 28415941 47847178 第一类:加65+73+135 129+235+171+165 6+7+8+102+103+104 第二类:减40025644 2

2、584216 344-(144+37)1 23 52 (250125)(48)1256425 125(404)2544 2594 88125 4212585 76103 23 52 (250125)(48)1256425 125(404)2544 2594 88125 4212585 76103 4225 999 4545 8(12513)72125 25488125 第四类:乘(12+50)40 18125 9978 2 2821+2879 9932+32 398+639-394 (42+25)125+(18+15)25052 1723-237 46+4659 600125 第五类:乘282

3、1+2879 9932+32 398+639-394 (42+25)125+(18+15)25052 1723-237 46+4659 600125 4537+3755 3846+6438 1672+1673+1675 2822522256225 125 2324+2542+2718+2581 9922+3334 第六类:除36049 3 480548 240025 197+102 127-98 67236+64 (6467832)+(18321467)9900012111 240512 780012 354-108 323+189-123 3702381234 80058 480548 24

4、0025 197+102 127-98 67236+64 (6467832)+(18321467)9900012111 240512 780012 354-108 323+189-123 3702381234 42035 第七类:加减92+99 405-99 248+8648 1530+(592-530)192 (2+4+6+ +98+100)( 1+3+5+97+99)第八类:乘除9604648 4 1000(1254) (230-23)23 125(860+24012) 700+612124 200520062006200620052005 25488125 125(40-4)2544 (

5、250-25)25 86103 1000(1254) (230-23)23 125(860+24012) 700+612124 200520062006200620052005 25488125 125(40-4)2544 (250-25)25 86103 4225 第九类:加减乘除(98+147)49 173628+106428 (37+15)85+1360 4212585 (12+50)40 18125 5 9978 3723237 46+4659 2822522256225 65+73+135 129+235+171+165 4538+3855 3846+6438 1672+1673+1

6、675 357+288+143 17+145+23+35 999 9978 3723237 46+4659 2822522256225 65+73+135 129+235+171+165 4538+3855 3846+6438 1672+1673+1675 357+288+143 17+145+23+35 2821+2879 9932+32 398+639-394 (42+25)125+(18+15)125 272+68+28 6 517 5347 47847178 4545 8(12513)72125 25488125 76103 284-159-41 344-(144+37)23 52 (

7、250125)(48)517 5347 47847178 4545 8(12513)72125 25488125 76103 284-159-41 344-(144+37)23 52 (250125)(48)1256425 (12+50)40 18125 258-42-16 545167145 236-(177+36) 2594 88125 4212585 125(404)7 4225 2821+2879 9932+32 398+639-39 4 600125 42035 999 1723237 46+4659 36049 80058 117+392+608 9978 480548 4225

8、2821+2879 9932+32 398+639-39 4 600125 42035 999 1723237 46+4659 36049 80058 117+392+608 9978 480548 88272712 4537+3755 3846+6438 1672+1673+1675 25052 240512 8 775725 435(135189) 14714799 35201 212586 2548 2346634 16725322525 25(48) 7598 2532125 3500425 87538747 775725 435(135189) 14714799 35201 2125

9、86 2548 2346634 16725322525 25(48) 7598 2532125 3500425 5285347 389938 10875 2574 12588 9 3025570 6.3 1.8 5285347 2.1 99 3025570 6.3 1.8 5285347 2.1 99 2.1 8100475 315015 28241159 12564+12536 158395105 16800(10000100010010)88272712 6419964 480025 (13856)(456) 0。18 4。26 0。18 4。26 120 124824 10 10 66。

10、868。661.3410 0.432 2.568 355+260+140+245 12532 9926 930 0。6 66。868。661.3410 0.432 2.568 355+260+140+245 12532 9926 930 0。6 5 2357183317357 98199 10299 2546 382101-382 1022478422 672362125 881189 25 6。8 0。04 645180245 10156 460508 63。4 2。5 0。4 64 11 50025734143 899989 6982919 1552564598 216+89+11 720

11、02430 76 102 755-287+87 3999+498 568(68178) 7599+275 219 50025734143 899989 6982919 1552564598 216+89+11 72002430 76 102 755-287+87 3999+498 568(68178) 7599+275 219 99 7846+7854 16912323169 1814378422 8822522512 3821653582 759126259 1050157 58 101 12 5651+5648+56 732254332 228+(72+189) (2130+783+270

12、)+1017 1252532 56254125 109+(291176)2425 129101-129 5651+5648+56 732254332 228+(72+189) (2130+783+270)+1017 1252532 56254125 109+(291176)2425 514+189214 2474+2624 (375+1034)+(966+125) 13 参考答案第一类 :加65+73+135 357+288+143 272+68+28 =65+135+73 =357+143+288 =272+28+68 =273 =788 =368 129+235+171+165 17+14

13、5+23+35 999+99+9+3 =129+171+(235+165) =17+23+(145+35) =999+1+(99+1)+(9+1)=700 =220 =1110 6+7+8+102+103+104 9998+3+99+998+3+9 =102+8+(7+103)+(6+104) =9998+2+(99+1)+ (998+1)+(9+1)=330 =11110 第二类 :减400-256-44 517-53-47 284-15941 =400-(256+44) =517-(53+47) = 284(156+41) =100 =417 =84 25842-16 545-167145

14、 47847178 =258(42+16) =545145-167 =47817847 =200 =233 =233 344(144+37) 236-(177+36)=244144-37 =23636177 =63 =23 第三类 :乘4545 23 52 2594 =45(45) =23(52) =2549 =90 =230 =900 8(12513) (250125)( 48) 88125 =812513 =1258(2504) =812511 =13000 =1000000 =11000 72125 1256425 4212585 =81259 =1258(258) =425(1258)

15、 =9000 =200000 = 210000 25488125 =100(8125) 11 =1100000 14 125(404) =125401254 =76100+763 =78284225 999 =25411 =1050 2821+2879 =28(21+79) =230 46+4659 =32(99+1) =276039125(404) =125401254 =76100+763 =78284225 999 =25411 =1050 2821+2879 =28(21+79) =230 46+4659 =32(99+1) =2760398+639-394 =39(8+64)=390

16、 (42+25)125+(18+15)125 =125(42+18+25+15)=12500 9922+3334 =33(66+34)=3300 600125 = 250(52) =10 240512 485 =240780012 55 =7800197+102 =197+(100+2)=197+100+2 =299 76103 =76(100+3) =22521 1723237 =23(17-7)= 46(59+1) =600(125) 125 62 354-108 =354(100+8)=3541008 =246 (12+50)40 =1240+5040 =880 =5400 18125

17、2544 =(10+8)125 =10125+8125=2250 =110 9978 =(1001) 78 =10078178 =7722 第五类:乘4537+3755 =37+(45+55) =3700 =2800 3846+6438 9932+32 =38(46+64) =38110 =3200 =38(100+10) =38100+3810 =4180 1672+1673+1675 =167(2+3+5) =1670 282252225-6225 =225(28-26)=4500 2324+2542+2718+2581 =8(23+25+27)=600 第六类 :除36049 25052

18、 =360(49)=10 =25 80058 480548 =80085 =480=20 =2 =442035 240025 =42075 =2400=12 =96 =650第七类:加减92+99 =92+(1001)=92+1001 =191 15 =2005200610001-2006200510001 =0 25488125 =10011(8125) =1100000 125(404) 86103 =2005200610001-2006200510001 =0 25488125 =10011(8125) =1100000 125(404) 86103 =12540-1254 =86(10

19、0+3)=4500 =86100+863 2544 4225 =25411 =22521 =1100 =1050 9978 4538+3855 =(1001) 78 =(45+55) 38 =7810078 =3800 =7722 =405(1001) =127-(100-2) =323-123+189 = 405100+1 =127100+2 =389 =306 =29 248+8648 672-36+64 (6467-832)+(1832-1467) =24848+86 =672(36+64) =64671467+(1832-832)= 286 =572 =6000 1530+(59253

20、0)-192 (2+4+6+98+100)( 1+3+5+97+99) =1530530+(592-192) =(21)+(4-3)+(9897)+(10099) =1400 =1+1+.。+1+1 =50 第八类:乘除9604648 9900012111 3702381234 =9604846 =99000(12111) =12343381234 =920 =9000 =114 640(164) 1000(1254)=640164 =10001254 =160 =32 第九类 :加减乘除(98+147)49 (23023)23 (25025)25 =9849+14749 =230232323

21、 =250252525 =5 =9 =9 173628+106428 125(860+24012) 700+612124 =(1736+1064) 28 =125880 =700+612344 =100 =1258110 =700+204 =110000 =904 (37+15)85+1360 200520062006200620052005 =5085+285+1360 =4250+170+1360 =5610+170=5780 4212585 =1258(425)=210000 (12+50)40 =1240+5040 =680 =8858 18125 =(10+8) 125 =12510

22、+1258 =2250 999 =(100-1) 9 =10099 =91 16 3846+6438 =(377) 23 =3800 1672+1673+1675 =(2+3+5) 167 =1670 2822522256225 =(28-26) 225 65+73+135 =65+135+73 =357+143+288 =273 3846+6438 =(377) 23 =3800 1672+1673+1675 =(2+3+5) 167 =1670 2822522256225 =(28-26) 225 65+73+135 =65+135+73 =357+143+288 =273 =788 17

23、+145+23+35 =129+171+(235+165 )=220 28415941 258-42-16 =517-(53+47)=84 344-(144+37)=34414437 =163 23 52 =45(45)=230 (250125)(48) =2504(1258) =1000000 1256425 =1258(825)=100000 25488125 =10011(8125) =2480 18125 =76(100+3) =76100+376 =2250 999 9978 =(100-1) 9 =(100-1) 78 =91009 =780078 =891 =7722 17232

24、37 =(21+79) 79 =230 =(46+64) 38 357+288+143 =17+23+(145+35)=284-(159+41)=23(52)(12+50)40 =1240+5040 =(10+8) 125 =10125+8125 =(177) 23 =(21+79) 79 =7900 =690 9932+32 46+4659 =(99+1) 32 =(59+1) 59 =3200 =3540 398+639394 =(8+6-4) 39 =390 =2500 (42+25)125+(18+15)125 =(42+18)+(25+15) 125 =12500 272+68+28

25、 129+235+171+165 =272+28+68 =368 =700 400-256-44 5175347 =400(256+44)=100 =417 545-167145 478-47-178 =545145-167 =478178-47 =233 =253 236-(177+36) 4545 =23636177 =23 =90 2594 8(12513)=2549 =812513 =900 =13000 88125 72125 =11(8125) =9(8125) =11000 =9000 4212585 =425(8125)=210000 =1100000 125(40-4) 76

26、103 =125401254 =4500 =7828 2544 4225 =25(40+4) =(40+2) 25 =2540+254 =4025+225 =1100 =1050 4537+3755 2821+2879 =(45+55) 37 =3700 =7900 17 9932+32 =(99+1) 32 =3200 398+639394 =(8+64) 39 =390 600125 =600(125)=20 42035 =42075 =12 775725 =(7525) 7 =350 435(135189)=435135189 =5000 14714799 =(99+1) 147 =14

27、700 35201 =35(200+1)=7035 212586 =26(1258)9932+32 =(99+1) 32 =3200 398+639394 =(8+64) 39 =390 600125 =600(125)=20 42035 =42075 =12 775725 =(7525) 7 =350 435(135189)=435135189 =5000 14714799 =(99+1) 147 =14700 35201 =35(200+1)=7035 212586 =26(1258)=12000 2548 =2586 =600 3025570 =30+70+255 =482 6.3 1.

28、8 =6.30。92 =3。5 5285347 =528(53+47)46+4659 =(59+1) 46 =2760 36049 =360(49)=10 80058 =80085 =2 117+392+608 =117+(392+608) =(88+12) 27 =1117 2346634 =2343466 =134 16725322525 =(167+32+1) 25 25(48)=254+825 =300 7598 =75(100-2)=7350 2532125 =254(8125)=100000 3500425 =3500(425) =35 28241159 =282+(41+159)

29、 12564+12536 =(64+36) 125 =12500 158395105 =158+(395+105) 480548 =480485 88272712 =2700 =(46+64) 38 =11038 =(10+100) 38 =3810+38100 =4180 1672+1673+1675 =(2+3+5) 167 =1670 25052 =250(52)=25 =10 240512 =240125 =4 87538747 =(53+47) 87 =8700 5285347 =528(53+47) =428 =111 389938 =(99+1) 38 =3800 10875 =

30、(100+8) 75 =8100 2574 =2547 =700 12588 =25811 =11000 420352 =420(352)=60 =355 88272712 =(88+12) 27 =2700 6419964 =64(199+1)18 =658 2。1 99 2.1 =13(84) (55) (66)=210 8100475 =(81x100 )4(25x=658 2。1 99 2.1 =13(84) (55) (66)=210 8100475 =(81x100 )4(25x3 )=813x(100425)315015 =315053 =210 99+999+9999+9999

31、9 =(99+1)+(999+1)+(9999+1)+(99999+1)-4 10 0。432 2.568 =(8900-89)89 =10(0.432+2.568) =19502 10299 2125 =355+245+(260+140)=10098 =250 2546 =25(40+6)1150 382101382 =382(1011) =38200 1022478422 =1022(478+422)=122 2357183317357 =2357357(183+317)=(672-72)+(36+64)50025734143 =500-(257+34)143 =57 899989 =(9

32、9+1) 89 =8900 6982919 =698(291+9)=2。1(99+1) 16800120 =(12000+4800)120 =140 (10000-1000-100-10)10 =1000010-1000 10-100 10-10 10 =1000-(100+10+1)98199 =98(2001)=99(100+2) =2525 6723664 =6723636+36+64 755287+87 =755(28787)=555 3999+498 =(40001)+(5002)=4000+50012 =4497 568(68178)=56868178 480025 (13856)(456)=4810025 =484 =26 =192 0.18 4。26 0.18 4。26 =4.26+4。26+(0。18-0。18) =8.52 124824 =1248122 =52 =889=138+62+(293+107) =500 =111096 66.868。661.34 881189 =66.88(8.66+1。34)=56。88 =99 =7 25 6。8 0.04 355+260+140+245 =250.046。8 =6.8 =1000 645-180245 12532 =645245180 =12584 =22

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