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小學(xué)數(shù)學(xué)簡便運(yùn)算練習(xí)題Preparedon21November2021小學(xué)數(shù)學(xué)簡便運(yùn)算練習(xí)題(13X8)X12520X(17X5)14X20X5276X38+276X6225X(40X32)(5X7)X808X14X125X616X25X5X425X13X43X12X523X4X40X7X3X525X6X4X53475-19992843-598(8X6)X1254X8X25X125259+468+741+53236X25(15+25)X23700-2185-81512X2528X25125X(8+4)25X(8+40)X56125X2425X2420X12X5X316X(37+12)44+68+568X(125+9)5616X25X1932X12544X250125724-29848X19+52X19847-2974X7X25X346X18+54X1813X68+13X329X6+4X96X29+6X7129X317+317X7149X80+80230-216-18425X225X1675X25X2X4345+49764X12525X48(25+7)X4(2+4)X1599X14125X(8X6)25X4432+160X(15+500)248+198435+1999(400+16)X5170X4+80X4103X5X(20+6)8X23+8X275X116+5X84(125+12)X848X12575X99+75(25X30)X44X20X75X514X20X5276X38+276X6225X(40X32)(5X7)X808X14X125X616X25X5X425X13X43X12X523X4X40X7X3X525X6X4X53475-19992843-598(8X6)X1254X8X25X125259+468+741+53236X25(15+25)X23700-2185-81512X2528X25125X(8+4)25X(8+40)X56125X2425X2420X12X5X316X(37+12)44+68+568X(125+9)5616X25X1932X12544X250125724-29848X19+52X19847-2974X7X25X346X18+54X1813X68+13X329X6+4X96X29+6X7129X317+317X7149X80+80230-216-18425X225X1675X25X2X4345+49764X12525X48(25+7)X4(2+4)X1599X14125X(8X6)25X4432+160X(15+500)248+198435+1999(400+16)X5170X4+80X4103X5X(20+6)8X23+8X275X116+5X84(125+12)X848X12575X99+75(25X30)X44X20X75X5102X3618X8X167X9+33X913X5+414X(25X30)4X(25+150+75)12X15+12X3532X2513X5+41X5+26X55X(18+20)52X989X99+9936X5+36X538X99+385X(18X20)31X128-28X31(25+250)X4(125X125)X846X105X(18X20)30.8F[14-(9.85+1.07)][60-(9.5+28.9)]F0.182.881^0.43-0.24X3.520X[(2.44-1.8)F0.4+0.15]28-(3.4+1.25X2.4)2.55X7.1+2.45X7.1777X9+1111X30.8X〔15.5-(3.21+5.79)〕(31.8+3.2X4)F531.5X4F(6+3)0.64X25X7.8+2.22F2.5+2.5F2194-64.8^1.8X0.936.72^4.25X9.95180-705X624^2.4-2.5X0.8(4121+2389)^7671X15-974469X12+1492405X(3213-3189)3.416^(0.016X35)0.8X[(10—6.76)F1.2]19.4X6.1X2.35.67X0.2-0.6218.1X0.92+3.930.4X0.7X0.250.75X102100-56.230.78+5.436+14.07X0.86+9.12.51、89+124+11+26+4822、875-147-233.25X125X40X844、147X8+8X535、125X6466、0.9+1.08+0.92+0.1用簡便方法計(jì)算①89+124+11+26+48②875-147-23③147X8+8X53④125X64計(jì)算下面各題.1.280+840^24X522.85X(95—1440^24)3.58870^(105+20X2)4.80400—(4300+870^15)5.1437X27+27X5636.81432^(13X52+78)7.125X(33—1)8.37.4—(8.6+7.24—6.6)計(jì)算:(1)156X107-7729(2)37.85-(7.85+6.4)(3)287X5+96990^318(4)1554F[(72-58)X3]脫式計(jì)算2800F100+789(947—599)+76X641.36X(913—276^23)2.(93+25X21)X93.507^13X63+4984.723—(521+504)^255.384^12+23X3716.(39—21)X(396^6)(1)156X[(17.7-7.2)F3](2)[37.85-(7.85+6.4)]X30(3)28X(5+969.9^318)(4)81F[(72-54)X9]57X12—560^35848—640^16X12960^(1500—32X45)704X25[192—(54+38)]X67138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)178X101—17884X36+64X8475X99+2X7583X102—83X298X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F7575X27+19X2531X870+13X3104X(25X65+25X28)138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)102X7658X98178X101—17884X36+64X8475X99+2X7583X102—83X298X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F7517X40=100—63=3.2+1.68=2.8X0.4=14—7.4=1.92F0.04=0.32X500=0.65+4.35=10—5.4=4F20=3.5X200=1.5—0.06=0.75^15=0.4X0.8=4X0.25=0.36+1.54=1.01X99=420^35=25X12=135^0.5=3/4+1/4=2+4/9=3-2/3=3/4-1/2=1/6+1/2-1/6=7.5-(2.5+3.8)=7/8+3/8=3/10+1/5=4/5-7/10=2-1/6-1/3=0.51F17=32.8+19=5.2F1.3=1.6X0.4=4.9X0.7=1F5=6F12=0.87—0.49=17X40=100-63=3.2+1.68=2.8X0.4=14—7.4=1.92^0.04=0.32X500=0.65+4.35=10—5.4=4F20=3.5X200=1.5—0.06=0.75^15=0.4X0.8=4X0.25=0.36+1.54=1.01X99=420^35=25X12=135^0.5=3/4+1/4=2+4/9=3-2/3=3/4-1/2=1/6+1/2-1/6=7.5-(2.5+3.8)=7/8+3/8=3/10+1/5=4/5-7/10=2—1/6-1/3=0.51^17=32.8+19=5.2F1.3=1.6X0.4=4.9X0.7=1F5=6F12=0.87—0.49158+262+138375+219+381+2255001—247—1021—232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755—(2187+755)2214+638+2863065—738—1065899+3442357—183—317—3572365—1086—214497—2992370+19953999+4981883—39812X2575X24138X25X4(13X125)X(3X8)(12+24+80)X50704X2525X32X12532X(25+125)88X125102X7658X98178X101-17884X36+64X8475X99+2X7583X102-83X298X199123X18-123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F7516800F12030100^210032000F40049700F7001248F243150F154800F2521500F125附加題:2356-(1356-721)1235-(1780-1665)75X27+19X2531X870+13X3109999+99.99+999.9+9.9995.4^1.8+240X1.59000^72X(1.25X0.7X8)61-(1.25+2.5X0.7)[(10—0.8)+9.85]—2F0.1253八2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)178X101-17884X36+64X8475X99+2X7583X102-83X2123X18-123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F75158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755—(2187+755)2214+638+2863065—738—10652357—183—317—3572365—1086—214138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)178X101—17884X36+64X8475X99+2X7583X102—83X2123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F752356—(1356—721)1235—(1780—1665)75X27+19X2531X870+13X3104X(25X65+25X28)2.73+0.89+1.274.37+0.28+1.63+5.7210—0.432—2.568—5.26—2.7413.4—(3.4+5.2)(5.2+4.9)18.32—5.47—4.3217.29—5.28—6.2925X6.8X0.040.25X32X0.125X1.25X12.53.28X5.7+6.72X5.72.1X99+2.11.7X9.9+0.1723X0.1+2.3X9.90.18+4.26—0.18+4.260.58X1.3-F0.58X1.37.3F4+2.7X0.253.75X0.5—2.75F25.26X0.125+2.74F8-FC1.9X8)-F(0.4X1.6)930-F0.6-F5F2.5F0.4(7.7+1.54)F0.7(11.7+9.9)F0.96.9+4.8+3.115.89+(6.75—5.89)7.85+2.34—0.85+4.6635.6—1.8—15.6—7.213.75—(3.75+6.48)—7.45+2.5566.86—8.66—1.340.25X16.2X40.25X32X0.1252.5X(4+0.4)(1.25—0.125)X856.5X9.9+56.55.4X11-5.43.83X4.56+3.83X5.447.09X10.8—0.8X7.093.65X4.7—36.5X0.3713.7X0.25—3.7^410.7X16.1-1.1X10.7+10.7X53.9F(1.3X5)63.4F2.5F0.41.2+8.9+0.12+1.14X(25X65+25X28)1.8二2)99X84=3)1.02X4=4)7.34-4二0.45F0.15二6)800X0.03=7)3.27-1.27+4.9二8)11X25=0.14X50=10)0.81^0.27=11)0.24X0.5=12)18.2+1.1.5X3二14)0.16X30=15)5.38+0.45+1.55二16)0.56^0.8=3.6^0.09=18)800X0.03=19)200X0.16=20)279^300=0.56^0.07=22)1.5X3=23)0.42X3=24)3.8=5.2^13=26)7.34-4=27)4.8F0.3=28)0.65X100=5.7-1.8=30)4.3F0.5=31)200X0.16=32)0.83^0.1=1.6^2=34)5.4X400=35)0.14X50=36)10-4.18=8^0.01^400=38)0.83^0.1=39)0.35+1.45=40)800X0.03=0.24X0.5=42)1.54+0.7=43)2.4+8.06=44)3.14+1.36=0.65X100=46)1.6F2=47)9.6F0.8=48)2.4^0.8=2.79^3=50)7-0.23=51)1.5X0.5=52)0.42^0.7^0.6=60X0.8=54)7F3.5=55)3.27-1.27+4.9=56)8X1.03=0.85X4=46)4.5+6.3=47)0.7X1.2=48)2.5X0.4=5.4F1.8+240X1.59000F72X(1.25X0.7X8)61-(1.25+2.5X0.7)[(10-0.8)+9.85]-2F0.1253"2*3.256783,-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065—738—1065138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)178X101—17884X36+64X8475X99+2X7583X102—83X2123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F75158+262+138375+219+381+2255001—247—1021—232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755—(2187+755)2214+638+2863065—738—10652357—183—317—3572365—1086—214138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)178X101—17884X36+64X8475X99+2X7583X102—83X2123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300^25^48100^4^752356—(1356—721)1235—(1780—1665)75X27+19X2531X870+13X3104X(25X65+25X28)2.73+0.89+1.274.37+0.28+1.63+5.7210-0.432-2.5689.3-5.26—2.7413.4—(3.4+5.2)(5.2+4.9)18.32-5.47-4.3217.29-5.28-6.2925X6.8X0.040.25X32X0.1256.4X1.25X12.53.28X5.7+6.72X5.72.1X99+2.11.7X9.9+0.1723X0.1+2.3X9.90.18+4.26-0.18+4.260.58X1.3F0.58X1.37.3F4+2.7X0.253.75X0.5-2.75-F25.26X0.125+2.74F89.5F(1.9X8)12.8-F(0.4X1.6)930-F0.6F563.4F2.5F0.4(7.7+1.54)F0.7(11.7+9.9)F0.96.9+4.8+3.115.89+(6.75—5.89)7.85+2.34—0.85+4.6635.6—1.8—15.6—7.213.75—(3.75+6.48)47.8—7.45+2.5566.86-8.66-1.340.25X16.2X40.25X32X0.1252.5X(4+0.4)(1.25—0.125)X856.5X9.9+56.55.4X11—5.43.83X4.56+3.83X5.447.09X10.8—0.8X7.093.65X4.7—36.5X0.3713.7X0.25—3.7F410.7X16.1—1.1X10.7+10.7X53.9F(1.3X5)63.4F2.5F0.4(7.7+1.4)F0.718F(2+9)57.26—(5.26—1.5)得分158+262+138375+219+381+2255001—247—1021—232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755—(2187+755)2214+638+2863065—738—1065899+3442357—183—317—3572365—1086—214497—2992370+19953999+4981883—39812X2575X24138X25X4(13X125)X(3X8)(12+24+80)X50簡便計(jì)算練習(xí)題2姓名得分704X2525X32X12532X(25+125)88X125102X7658X98178X101—17884X36+64X8475X99+2X7583X102—83X298X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100^4^7516800^12030100^210032000F40021500^12549700^7001248F243150F154800F25簡便計(jì)算練習(xí)題3姓名得分2356—(1356—721)1235—(1780—1665)75X27+19X2531X870+13X3104X(25X65+25X28)第一種(300+6)x1225x(4+8)125x(35+8)(13+24)x8第二種84x101504x2578x10225x204第三種99x6499x16638x99999x99第四種99X13+1325+199X2532X16+14X3278X4+78X3+78X3第五種125X32X825X32X12588X12572X125簡便計(jì)算練習(xí)題4姓名得分第六種3600F25F48100F4F753000F125F81250F25F5第七種1200-624-762100-728-772273-73-27847-527-273第八種278+463+22+37732+580+2681034+780320+102425+14+186第九種214-(86+14)787-(87-29)365-(65+118)455-(155+230)第十種576-285+85825-657+57690-177+77755-287+87第十一種871-299157-99363-199968-599第十二種178X101-17883X102-83X217X23-23X735X127-35X16-11X35簡便計(jì)算練習(xí)題5姓名得分容易出錯類型(共五種類型)600-60^1520X4^20X4736-35X2025X4F25X498-18X5+2556X8^56X8280-80^412X6^12X6175-75F2525X8F25X880-20X2+6036X9F36X936-36^6-625X8^(25X8)100+45-100+4515X97+3100+1-100+148X99+11000+8-1000+85+95X28102+1-102+165+35X1325+75-25+7540+360^20-1013+24X8672-36+64324-68+32100-36+64簡便計(jì)算練習(xí)題6姓名得分26X39+61X26356X9-56X999X55+5578X101-7852X76+47X76+76134X56-134+45X13448X52X2-4X4825X23X(40+4)999X999+1999184+98695+202864-199738-301380+476+120(569+468)+(432+131)704X25256-147-53373-129+29189-(89+74)28X4X25125X32X259X72X125簡便計(jì)算練習(xí)題7姓名得分720F16F5630F42456-(256-36)102X3598X42158+262+138375+219+381+2255001—247—1021—232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755—(2187+755)2214+638+2863065—738—1065899+3442357—183—317—3572365—1086—214497—2992370+1995簡便計(jì)算練習(xí)題8姓名得分3999+4981883—39812X2575X24138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)88X125102X76178X101—17884X36+64X8475X99+2X7598X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300^25^48100F4F75158+262+138簡便計(jì)算練習(xí)題9姓名得分1248F243150F154800F2521500F125375+219+381+2255001—247—1021—232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755—(2187+755)2214+638+2863065—738—1065899+3442357—183—317—3572365—1086—214497—2992370+19953999+4981883—398簡便計(jì)算練習(xí)題10姓名得分12X2575X24138X25X4(13X125)X(3X8)(12+24+80)X50704X2525X32X12532X(25+125)88X125102X7658X98178X101—17884X36+64X8475X99+2X7583X102—83X298X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X5721500F1257300F25F48100F4F7516800F120簡便計(jì)算練習(xí)題11姓名得分(a+b)+c=a+(b
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