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

===

===

25×8×9(601-246)÷5201+232-365

===

===

(25+33)×262+3×56=63×147-198=

===

===

735-35×12=540÷(65-59)789-13×45

===

===

22×4+22121×3+41040÷2+174

===

===

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

===

===

60-12×364÷8+456640+60×4

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===

56÷7+36÷6500×(400-396)72÷9-5

===

===

564+264-4537650-(546+4530)65×9-450

===

===

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

===

===

280×4÷560×8+157060×(23-17)

===

===

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

===

===

600×8÷340+100÷5434+25×5

===

===

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

===

===

56÷7+36÷6500×(400-396)72÷9-5

===

===

564+264-4537650-(546+4530)65×9-450

===

===

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

===

===

280×4÷560×8+157060×(23-17)

===

===

960÷4×9350÷5×9450÷5+1250

===

===

(6900-2400)÷575÷15+20×53090+6×6

===

===

(387-387)+0160-160÷80750+550÷5

===

===

(111+189)×3125×8÷1006×250×0

===

===

(1+7)×(16-6)810×4÷433÷11+4×9

===

===

187+299-299587+496-6742660+26÷26

===

===

153÷153+65732÷(32÷16)300-(300-222)

===

===

75÷15+20×5(150-75)×(25-20)

==

==

3390-10×95687+(99-67)

==

==

1000+(1000-988)3560+20×90

==

==

(250-150)÷(30÷6)687+999÷3

==

==

(4870-3675)+7200÷9(9467-5642)÷(350÷70)

==

==

960÷4×9350÷5×9450÷5+1250

===

===

(6900-2400)÷575÷15+20×53090+6×6

===

===

(387-387)+0160-160÷80750+550÷5

===

===

(111+189)×3125×8÷1006×250×0

===

===

(1+7)×(16-6)810×4÷433÷11+4×9

===

===

187+299-299587+496-6742660+26÷26

===

===

153÷153+65732÷(32÷16)300-(300-222)

===

===

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

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