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四年级下册数学简便计算题49744Word文档格式.docx

1、1672+1673+1675 398+639-3928225-2225-6225 (42+25)125+(18+15)2324+252+2718+251 9922+3334 第六类:除 36049 25052 600128008 48048 24012 42035 240025 780012 第七类:加减 92+99 197+102 354-108 405-99 127-98 323+189-123 248+86-48 672-36+64 (6467-832)+(1832-1467) 1530+(592-530)-192 (2+4+6+98+100)-(1+3+5+97+99) 第八类:乘除

2、9604648 9900012111 3702381234 640(164) 1000(1254)第九类:加减乘除 (98+147)49 (230-23)23 (250-25)25 173628+106428 125(860+24012) 700+61212(37+15)85+1360 200520062006-200620052005 425 25(40-4) 869 9978 4538+3855 79 377 3838 59 1675394 28225 (42+25)125 65+73+135 357+288+143 272+68+28 129+235+171+165 17+145+23+

3、35 400-256-44 517-53-47 284-159-41 258-42-16 545-167-145 478-47-178 344-(144+37) 236-(177+36) 452 4 88) 88125 72125 125425 25125 (12+50)40 103 18 2544 4225 999 9955 2879 1738 9932+32 46+465 394 3602505 8008 48048 24012 42035 117+392+608 88272787538747 775725 2346634 5285347 435(135189) 16725322525 9

4、938 14714799 25(48) 10875 35201 7598 74 26 253288 2548 3500420352 3025570 28241159 12 6.3 1.8 12564+12536 19964 5285347 158395105 480025 (136)6) 2.1 99 2.1 0.18 4.26 0.18 4.26 810075 16800120 124824 315015 (10000-1000-100-10)10 13829362107 99+999+9999+99999 66.868.661.34 881189 10 0.432 2.568 981992

5、5 6.8 0.04 355+260+140+245 10299 2645-180-245 12532 2546 10156 9926 382101-382 60508 930 0.6 5 1022478422 63.4 2.5 0.4 2357183317357 6723664 36643664 50025734143 755-287+871814378422 899989 3999+498 22522512 6982919 568(68178) 3821653582 1552564598 759-126-259 216+89+11 7599+275 1050157 72002430 219

6、 99 58 101 76 102 7846+7854 16912323169 129101129 5651+5648+56 12532 24514+189214 732254332 56125 2474+2624 228+(72+189) 109+(291176)(375+1034)+(966+125) (2130+783+270)+1017 参考答案65+73+135 357+288+143 272+68+28 =65+135+73 =357+143+288 =272+28+68=273 =788 =368=129+171+(235+165) =17+23+(145+35) =999+1+

7、(99+1)+(9+1)=700 =220 =1110=102+8+(7+103)+(6+104) =9998+2+(99+1)+(998+1)+(9+1)=330 =11110=400-(256+44) =517-(53+47) = 284-(156+41)=100 =417 =84 =258-(42+16) =545-145-167 =478-178-47=200 =233 =233=244-144-37 =236-36-177=63 =23=455) =23(52) =259=90 =230 =9008) 88=813 =125(2504) =811=13000 =1000000 =11

8、00025 429 =125(258) =428)=9000 =200000 = 210000=100(8125) =1100000=1240+5040 =12540-1254 =76(100+3)=880 =5400 =76100+763 =7828125 25=(10+8)125 =2511 =221 =10125+8125=2250 =110 =1050=(100-1) 7878-178 =7722=37+(45+55) =28(21+79) =23(17-7)=3700 =2800 =230=38(46+64) =32(99+1) = 46(59+1)110 =3200 =2760(1

9、00+10)100+3810=4180=167(2+3+5) =39(8+6-4)=1670 =390=225(28-2-6) =125(42+18+25+15)=4500 =125001 99(23+25+27) =33(66+34)=600 =3300=3609) = 2502) =600(125)=10 =25 =10=80085 =480485 =240=20 =2 =435 240025 7800=42075 =24005 =780062=12 =96 =650=92+(100-1) =197+(100+2) =354-(100+8)=92+100-1 =197+100+2 =354

10、-100-8=191 =299 =246405-99 127-98 323+189-123 =405-(100-1) =127-(100-2) =323-123+189= 405-100+1 =127-100+2 =389=306 =29248+86-48 672-36+64 (6467-832)+(1832-1467) =248-48+86 =672-(36+64) =6467-1467+(1832-832)= 286 =572 =6000 1530+(592-530)-192 (2+4+6+98+100)-(1+3+5+97+99) =1530-530+(592-192) =(2-1)+(

11、4-3)+(98-97)+(100-99)=1400 =1+1+.+1+1 =5048 99000=9604846 =99000(12111) =123431234=920 =9000 =114 4) 1000=640164 =10004=160 =32=9849+14749 =23023-2323 =25025-2525=5 =9 =928 125=(1736+1064) 28 =125880 =700+6123=100 =125110 =700+204 =110000 =904 =5085+285+1360 =2005200610001-2006200510001=4250+170+136

12、0 =0=5610+170=5780=125(425) =10011125)=210000 =11000004 =86=680 =4500 =86100+863=8858=(10+8) 11 =22110+1258 =1100 =1050=22509 =(100-1) 78 =(45+55) 389-9 =78100-78 =3800 =91 =7722=(21+79) 79 =(37-7) 23 =(46+64) =7900 =690 =3800=(99+1) 32 =(59+1) 59 =(2+3+5) 167=3200 =3540 =16704 28=(8+6-4) 39 =(28-2-

13、6) 225=390 =2500=(42+18)+(25+15) 125 =65+135+73 =357+143+288=12500 =273 =788272+68+28 129+235+171+165 17+145+23+35 =272+28+68 =129+171+(235+165) =17+23+(145+35)=368 =700 =220=400-(256+44) =517-(53+47) =284-(159+41)=100 =417 =84=545-145-167 =478-178-47 =344-144-37=233 =253 =163=236-36-177 =452)=23 =9

14、0 =230 4 8=259 =813 =250=900 =13000 =1000000125 72=11125) =9125) =12525)=11000 =9000 =100000=42125) =100125) =1240=210000 =1100000 =2480(100+3) =(10+8) =4500 =76100+376 =10 =7828 =2250(40+4) =(40+2) 25 =(100-1) 40+254 =4025+225 =9100-9 =7800-78=1100 =1050 =891 =7722=(45+55) 37 =(21+79) 79 =(17-7) 23

15、=3700 =7900 =230 59 =(46+64) 38 =(99+1) 32 =(59+1) 46=11038 =3200 =2760=(10+100) 10+38100=(2+3+5) 167 =(8+6-4) 39 =3609) =1670 =390 =10=2505) =800=25 =10 =20 =235 117+392+608 88=2405 =4205 =117+(392+608) =(88+12) 27 =4 =12 =1117 =2700=(53+47) 87 =(75-25) 7 =234-34-66=8700 =350 =134=528-(53+47) =435-

16、135-189 =(167+32+1) =428 =111 =500038 =(99+1) 147 =254+8=3800 =14700 =30098 =(100+8) 75 =35(200+1) =75(100-2)=8100 =7035 =73507 =268) =25=700 =12000 =10000011 =256 =3500=11000 =600 =35(352) =30+70+255 =282+(41+159)=60 =355 =48212 6.3 1.8 12536 =(88+12) 27 =6.30.92 =(64+36) =2700 =3.5 =12500=64(199+1

17、) =528-(53+47) =158+(395+105)=12800 =428 =6586) 2.1 =4810025 =13(84) (55) (66) =2.1(99+1)4 =26 =210=19275 16800120 =4.26+4.26+(0.18-0.18) =(81x100)(25x3) =(12000+4800)=8.52 =813x(10025) =14010 =12482 =31503 =1000010-100010-10010-10=52 =210 =1000-(100+10+1) =889 13829362107 99+999+9999+99999 =138+62+

18、(293+107) =(99+1)+(999+1)+(9999+1)+(99999+1)-4=500 =11109666.868.661.34 881189 10 0.432 2.568 98199 =66.88-(8.66+1.34) =(8900-89)89 =10-(0.432+2.568) =98(200-1) =56.88 =99 =7 =19502 0.04 355+260+140+245 10299 20.046.8 =355+245+(260+140) =99(100+2) =2=6.8 =1000 =10098 =250=645-245-180 =1254 =25(40+6)=220 =4

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