三年级估算练习题

1、三年级估算练习（二）(1)(3)(4)(5)(6)386+427弋625369弋796+108405228弋182X5弋903X3弋269X6弋940276弋647+465弋579822438+84弋23475弋743X7弋5724892315X7弋178+243弋888X4弋9687892500387弋758625弋123X6弋325+186弋475+368弋428+399弋61X9弋58X8弋87X9弋503+279弋524376弋805+228弋182X5弋903X3弋269X6弋743X7弋315X7弋888X4弋61X9弋58X8弋87X9弋123X6弋903X3弋269X6弋182

2、X5弋743X7弋315X7弋888X4弋123X6弋61X9弋58X8弋87X9弋409+7勺67X92Q993+11弋476+8勺207+5弋59+2勺123X6弋481+254弋800+7勺768+3勺(1)(3)(4)(5)(6)990314弋504+6勺287+7勺448+2勺217+7勺306+6勺69X51Q78+4勺178+6勺32X28Q89X20Q490+8勺71+8Q42X19Q29X30Q358+6勺323+4勺410+7勺41X60Q38X62Q53X20Q659+6247+60弋59X25Q29X50Q494+7勺401+8勺357+6勺69X4弋334+11弋41

3、X20Q5十弋9+勺+弋%219+7弋802+20弋56X6弋91+30弋509+5勺219+7勺45X21Q332+3勺79X6弋99+3勺701+7勺86X30Q61X20Q56+5勺87+8勺402+4勺657+6勺897+8勺969+30Q551+55勺369+36弋96+9勺201+5勺779+7勺三年级估算练习（四）(1)(3)(4)(5)(6)247+8弋32X3弋48+4Q541+9弋92+9Q13X3弋59X7弋121X3弋482+2弋33+3Q563+8弋992+3弋3X203弋624+2弋601+2弋641+8弋882+4弋750549弋539+9弋12X4弋3X34Q2

4、X57Q13X4弋17X3弋361+9弋44X2弋986+3弋32X2弋2X404弋456+2弋79+500弋3X33Q284+4弋9X39Q33X23Q699+3弋49+33Q707三"23X3弋7836Q11X4弋231X3弋301X3弋393+3弋209+3弋12X4弋8253Q319X3弋719+9弋4700699弋598+3弋48+29Q639+8弋476+8弋7X51Q879+8弋810+8弋9X501弋82+17Q54+28Q(1)(3)(4)(5)(6)23X3弋12X31Q7X81Q48x11Q4X42Q41X9弋23X31Q15X51Q7X89Q11X68Q44X

5、13Q37X21Q7X11Q51X59Q24X2弋31X7弋9X74Q51X9弋71X11Q31X41Q24X21Q12X23Q37X2弋29X7弋28X4弋23X13Q11X36Q11X19Q11X55Q36X6弋28X12Q22X52Q16X6弋3X33Q211X4弋12X12Q37X6弋14X24Q6X96Q27X3弋97X7弋9X131弋8X20”222X7弋6X904弋391X4弋214X8弋444X6弋122X4弋221X3弋202X4弋3X87Q333X3弋51X9弋121X4弋227X3弋2X414弋907X4弋209X3弋41X9弋三年级估算练习(1)(2)(3)26+92Q57-3821500499弋42663+3弋962+3弋184+9弋6551+5Q3X82Q421-4-7弋342019Q181+3弋883-4-4弋120051+5Q719+9弋85X3弋7012X207弋82-4-4弋92+9弋9328352Q29+68弋6849弋823X23Q79+2勺58+26弋34421+2弋63+3弋1628172X444弋158+2勺479-4-2弋61（五）(4)(5)(6)X2弋92+3弋769+14弋662+6弋59X2弋X22Q48358+33弋599