小学三年级数学脱式计算200题讲课教案.docx
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小学三年级数学脱式计算200题讲课教案
824÷4×3(601-246)÷5201+232-365
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(25+38)×15(59-187)÷31500-125×8
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25×8×9(601-246)÷5201+232-365
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(25+33)×262+3×56=63×147-198=
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735-35×12=540÷(65-59)789-13×45
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22×4+22121×3+41040÷2+174
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147+72÷89×4+4202×80÷4
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120×5÷2202+36÷930÷5+240
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81÷9+87766×5+774921+7×4
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80×6×2770÷7+65807+20÷2
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100-50÷535-35÷7302+30×2
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600×8÷340+100÷5434+25×5
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60-12×364÷8+456640+60×4
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56÷7+36÷6500×(400-396)72÷9-5
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564+264-4537650-(546+4530)65×9-450
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9×80+9809000-(4500+250)6700+72÷8
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14×6+9×5900÷(71-68)180÷9-42÷6
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12÷6+45×38×(910-720)760-540+1110
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6500+1250-350080×30+56009450-3200-4200
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2400÷6-45800×7-1801600÷2+230
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4000÷8+350320÷8+64270÷3×9
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630÷9+3202800+32×6300÷6×9
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(6900-2400)÷5(72÷9)÷(56÷8)54÷9×8
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280×4÷560×8+157060×(23-17)
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22×4+22121×3+41040÷2+174
===
===
147+72÷89×4+4202×80÷4
===
===
120×5÷2202+36÷930÷5+240
===
===
81÷9+87766×5+774921+7×4
===
===
80×6×2770÷7+65807+20÷2
===
===
100-50÷535-35÷7302+30×2
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===
600×8÷340+100÷5434+25×5
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60-12×364÷8+456640+60×4
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5×7-48÷642÷7+36÷637×4+19×8
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10×4-20÷415÷3+10÷525÷5+42÷6
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35÷5+8×772÷9-36÷621×4-54÷9
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72÷8+9×536÷4+21×225÷5-16÷4
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56÷7+36÷6500×(400-396)72÷9-5
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564+264-4537650-(546+4530)65×9-450
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===
9×80+9809000-(4500+250)6700+72÷8
===
===
14×6+9×5900÷(71-68)180÷9-42÷6
===
===
12÷6+45×38×(910-720)760-540+1110
===
===
6500+1250-350080×30+56009450-3200-4200
===
===
2400÷6-45800×7-1801600÷2+230
===
===
4000÷8+350320÷8+64270÷3×9
===
===
630÷9+3202800+32×6300÷6×9
===
===
(6900-2400)÷5(72÷9)÷(56÷8)54÷9×8
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280×4÷560×8+157060×(23-17)
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960÷4×9350÷5×9450÷5+1250
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(6900-2400)÷575÷15+20×53090+6×6
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(387-387)+0160-160÷80750+550÷5
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(111+189)×3125×8÷1006×250×0
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(1+7)×(16-6)810×4÷433÷11+4×9
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187+299-299587+496-6742660+26÷26
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153÷153+65732÷(32÷16)300-(300-222)
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75÷15+20×5(150-75)×(25-20)
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3390-10×95687+(99-67)
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1000+(1000-988)3560+20×90
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(250-150)÷(30÷6)687+999÷3
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(4870-3675)+7200÷9(9467-5642)÷(350÷70)
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960÷4×9350÷5×9450÷5+1250
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(6900-2400)÷575÷15+20×53090+6×6
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(387-387)+0160-160÷80750+550÷5
===
===
(111+189)×3125×8÷1006×250×0
===
===
(1+7)×(16-6)810×4÷433÷11+4×9
===
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187+299-299587+496-6742660+26÷26
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153÷153+65732÷(32÷16)300-(300-222)
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75÷15+20×5(150-75)×(25-20)
forbid禁止forbade/forbadforbidden====
3390-10×95687+(99-67)
write书写wrotewritten==
3.以n结尾的词,在词后加t。
如:
mean—meant,burn—burnt,learn—learntwear穿着woreworn==
swing摇摆swungswung
let让letlet
1000+(1000-988)3560+20×90
feel触摸feltfelt
misunderstand误会misunderstoodmisunderstoodspeak说spokespoken==
strike敲击struckstruck
5.含有双写字母的词,将双写改为单写,在词尾加t。
如:
keep—kept,sleep—slept,feel—felt,smell—smeltsing唱歌sangsung==
will将would×
forecast预报forecastforecastshake摇shookshaken
throw投/扔threwthrown
shrink收缩shrank/shrunkshrunk/shrunken(250-150)÷(30÷6)687+999÷3
catch捕捉caughtcaughtswear发誓sworesworn==
==
cut割cutcut