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1、.2323 40=5440=54 3=183=18 30=6030=60 30=30=7070 50=25050=250 50=1450=14 60=8060=80 40=40=1818 50=1650=16 30=1.25+2.3=35.7-2.4=30=1.25+2.3=35.7-2.4=12.3+4.06=0.75+0.4=1.34+0.8=9.5-2.7=12.3+4.06=0.75+0.4=1.34+0.8=9.5-2.7=1.8+8.18=7.82-7.2=8.7+0.03=2.7+3.9=1.8+8.18=7.82-7.2=8.7+0.03=2.7+3.9=9.3-8.8=1.9
2、+25.79=4.5-3.26=5.1-1.9=2.2+5.7=9.3-8.8=1.9+25.79=4.5-3.26=5.1-1.9=2.2+5.7=4.8-2.5=18.3-3.7=2.9+15.9=6.3+3.6=6.7-4.5=4.8-2.5=18.3-3.7=2.9+15.9=6.3+3.6=6.7-4.5=6.8-0.7=27.3+2.15=23.5+1.68=53.16+3.54=6.6-3.7=6.8-0.7=27.3+2.15=23.5+1.68=53.16+3.54=6.6-3.7=7.2-2.7=7.2-2.7=12.3+3.7=5.3+4.47=2.8+1.9=3.2+1
3、2.76=3.25-0.12=12.3+3.7=5.3+4.47=2.8+1.9=3.2+12.76=3.25-0.12=4.5-2.1=5.8+6.9=1.5+4.85=16.8+5.4=3.6-1.3=4.5-2.1=5.8+6.9=1.5+4.85=16.8+5.4=3.6-1.3=24.6+2.4=8.1+1.2=2.45+5.5=0.5+2.6=24.6+2.4=8.1+1.2=2.45+5.5=0.5+2.6=93.1-20.9=53.4-2.4=5-0.08=96.3-56.2=93.1-20.9=53.4-2.4=5-0.08=96.3-56.2=136.5-105=73.4+
4、52.1=79.2+56.8=7.21+6.9=136.5-105=73.4+52.1=79.2+56.8=7.21+6.9=1.64+2.35=6.72-3.28=35.7-2.4=4.5-3.26=1.64+2.35=6.72-3.28=35.7-2.4=4.5-3.26=5.1-1.9=2.2+5.7=5.1-1.9=2.2+5.7=64080=155=233=1225=48080=165=273=9015=484=64016=393=2420=323=4816=128=273=5614=248=142=8345=56080=9624=4020=4030=3726=7639=60559=
5、3023=128=2732=-优选.4827=450020=7315=120600=200360=6800400=280+270=42500=600040=51280=31070=第三周40014=470+180=100025=160600=20420=290300=8100300=7600200=930-660=7600400=680+270=98014=420030=61300=130050=20048=530+280=9200400=84021=180500=8000500=190020=200160=8700300=300330=31400=700014=60012=960080=14
6、0300=880040=9600800=750290=5490=第四周76020=7500500=370200=65013=86004200=2404=64080=1510=16030=2506=7200+900=410-201=1258=4820=6600600=390+140=1180=2450=3600400=400050=第五周第五周4.8-2.5=18.3-3.7=2.9+15.9=6.3+3.6=6.7-4.5=4.8-2.5=18.3-3.7=2.9+15.9=6.3+3.6=6.7-4.5=6.8-0.7=0.2-0.09=2+9.1=0.89-0.25=1-0.55=6.8-
7、0.7=0.2-0.09=2+9.1=0.89-0.25=1-0.55=20.22+0.78=2-0.75=5.78-0.24=0.42+10.68=20.22+0.78=2-0.75=5.78-0.24=0.42+10.68=8.34-6.22=8.34-6.22=第七周第七周-优选.6.37+4.55=6.37+4.55=.320X5=120X8=9X470=310X5=6X150=390X5=2X570=6X270=270X2=940X3=700X8=4X280=6X660=2X880=6X230=8X800=7X210=860X6=6X930=480X9=6X280=240X3=7X1
8、30=2X450=9X390=9X780=270X5=5X690=790X6=720X9=8X920=4X980=340X7=4X710=8X730=900X2=170第八周X9=9X970=4X590=3X860=290X4=5X500=7X630=6X470=960X7=560X3=860X9=8X680=340X2=5X300=480X6=5X180=530X4=8X300=390X2=820X8=9X150=140X7=810X8=9X350=8X180=430X8=2X950=670X6=670X9=360X9=400X9=850X4=320X3=3X550=4X330=980X9=
9、560X6=第九周X8=920X7=7X510=200X2=8X490=730X4=7X250=680X3=7X320=2X180=770X2=2X330=4X520=550X6=990X6=6X970=4X780=2X840=940X6=770X5=970X5=5X370=第十周第十周27.3+2.15=23.5+1.68=53.16+3.54=6.6-3.7=27.3+2.15=23.5+1.68=53.16+3.54=6.6-3.7=-5X4903X4202X760940410X9620X8优选.7.2-2.7=12.3+3.7=5.3+4.47=2.8+1.9=7.2-2.7=12.3
10、+3.7=5.3+4.47=2.8+1.9=3.2+12.76=3.25-0.12=3.2+12.76=3.25-0.12=53070=42090=960030=7700=203+98=1800300=240+570=4800400=370+580=580-490=910370=2508=270190=3602=7525=33011=6800=54009=42060=9800=3330=3007=9500=39013=6300700=370560=第十一周5600700=480012=35007=520+490450908033070700700070400080240020042090170
11、320100051 52026091019035200222008800400930030063001800200 93003028040304199390261250502140660022076019866022050005010091753299 7000702004018030=24040=352=1407=136=第十二周2803=3502=5011=2506=7200+900=410-201=1258=4820=6600600=390+140=1180=2450=3600400=400050=-优选.53070=42090=960030=7700=203+98=1800300=24
12、0+570=4800400=370+580=580490=910370=258=270190=362=7525=33011=6800=54009=42060=9800=3330=3007=9500=39013=6300700=5600700=第十三周480012=35007=370560=520490=450908033070700700070 4000802400200=42090170320520260=910190=35200222008800400=9300300=63001800200930030280403041993902612505021406600220=760198=660
13、2205000501009175329917401006375154.4+15.99=88-69.21=4.4+15.99=88-69.21=63.1-11=0.48+0.52=1-0.98=3.7+4.8=8.36+0.64=63.1-11=0.48+0.52=1-0.98=3.7+4.8=8.36+0.64=3.6+0.87=8.16+3.7=0.33+9.8=3.6+0.87=8.16+3.7=0.33+9.8=81090=63070=10020=72090=24080=6010=15030=45090=36090=21070=32040=45090=第十四周16040=36060=18
14、090=15050=-优选.32080=40050=36060=4020=72080=48080=35070=7010=10050=64080=8040=10050=20040=30060=14070=54090=16040=24040=18060=63070=54060=36030=40050=18090=18030=48060=40050=8040=57030=72060=90030=16080=42070=96060=42060=90050=42010=62020=24080=40040=63030=95010=74010=84030=68040=8226=38020=62010=300
15、50=14070=30010=94010=36040=84030=68040=第十五周26=29)38020=30)30050=31)85010=32)9606=33)99090=34)21010=35)24060=36)53010=37)30050=38)85010=39)9606=40)99090=41)21010=42)30050=43)96080=44)18090=45)30050=46)96080=47)18090=48)98070=49)24080=50)28040=51)98070=52)40080=53)97010=54)27030=55)100050=-优选.56)40080
16、=57)97010=58)27030=59)100050=60)67010=61)18030=62)22020=63)49070=64)35010=65)99010=66)86020=67)96030=68)88040=69)48020=70)67010=71)18030=72)22020=73)49070=74)35010=75)99010=76)86020=77)68020=78)30060=79)90010=80)90020=81)77010=82)69030=83)9906=84)95050=85)6030=86)26010=87)54060=88)58010=89)26020=90)
17、68020=91)30060=92)90010=93)90020=94)77010=95)69030=96)9906=97)95050=98)36060=99)47010=100)100010=54090=47)40/20=48)60/20=49)90/10=50)140/20=51)270/90=52)630/70=53)270/90=54)250/50=55)490/70=56)420/70=57)40/10=58)90/10=59)100/20=60)20/10=61)200/50=62)630/70=63)420/60=64)270/30=65)720/90=66)30/10=67)3
18、20/40=68)630/90=69)60/10=70)270/30=71)350/50=72)360/90=73)140/20=74)450/90=75)140/70=-优选.76)160/20=77)420/60=78)300/60=79)80/20=80)160/80=81)40/20=82)560/80=83)450/90=84)320/40=85)450/90=86)80/20=87)40/10=88)200/40=89)270/30=90)630/70=40=95)91)140/20=92)540/60=93)300/50=94)360/第十七周540/60=96)720/90=9
19、7)150/30=98)210/70=99)360/40=100)420/60=12.3+4.06=12.3+4.06=54.29+27.1=98.3-2.354.29+27.1=98.3-2.34.29+2.1=4.29+2.1=0.75+0.4=0.75+0.4=10.7+0.93=5.64-0.4410.7+0.93=5.64-0.448.3-2.63=8.3-2.63=1.6+68.42=85.8-56.=1.6+68.42=85.8-56.1.34+0.8=1.34+0.8=6=6=1.7+0.43=1.7+0.43=20.2-7.09=24+9.18=120.2-7.09=24+9
20、.18=19.5-2.7=9.5-2.7=0.89-10.25=1.1-0.550.89-10.25=1.1-0.555-0.44=5-0.44=1.8+8.18=1.8+8.18=2.22+0.8=2.2-0.75=52.22+0.8=2.2-0.75=512.6+3.42=19.8-5.6=12.6+3.42=19.8-5.6=4.78-10.24=50.42+204.78-10.24=50.42+207.82-7.2=7.82-7.2=.98=.98=14-0.14=4.64+15.36=14-0.14=4.64+15.36=2.34-1.2=66.37+8.5=2.34-1.2=66.
21、37+8.5=8.7+0.03=8.7+0.03=0.99+1.8=2.56-0.37=0.99+1.8=2.56-0.37=8.02+15.28=108.5-358.02+15.28=108.5-353.9+2.03=2.14-0.9=7.3.9+2.03=2.14-0.9=7.05=0.32+1.57=9.25+.05=0.32+1.57=9.25+2.7+3.9=2.7+3.9=55-4.1=0.87+5.68=55-4.1=0.87+5.68=2.25=2.25=13.3-5.28=7.87+5.6613.3-5.28=7.87+5.669.23+4.52=9.23+4.52=9.3-
22、8.8=9.3-8.8=24.8+1.46=24.8+1.46=5.58+1.89=5.58+1.89=1.9+25.79=1.9+25.79=62.3-1.25=5.7-0.93=62.3-1.25=5.7-0.93=0.78+2.2=0.78+2.2=10.5-3.25=6.4+1.89=10.5-3.25=6.4+1.89=0.8-0.45=0.8-0.45=7.85+3.4=7.85+3.4=4.1+28.9=25.13-1.8=4.1+28.9=25.13-1.8=6.45-3.29=6.45-3.29=5.87+35.26=3.08+5.85.87+35.26=3.08+5.892
23、.7-0.05=92.7-0.05=3.07+3.65=3.07+3.65=3=3=87.68-20.7=87.68-20.7=5.62-4.2=16.52-1.085.62-4.2=16.52-1.0875.8-17.5=75.8-17.5=1.83+2.7=1.83+2.7=35.85+8.04=30.07+3=35.85+8.04=30.07+342.5-23.65=42.5-23.65=9.65=9.65=56.2+9.38=56.2+9.38=13.8+9.9=13.8+9.9=11.83+62.7=3.8+9.9=11.83+62.7=3.8+9.9=67.3+23.92=67.3
24、+23.92=-优选.4.72+8.49=4.72+8.49=5.63+1.27=5.63+1.27=9.06-1.59=9.06-1.59=7.95-4.9=7.95-4.9=8.02+5.08=8.02+5.08=18.5-5.07=18.5-5.07=4.32+18.7=4.32+18.7=5.65+8.95=5.65+8.95=7.3+49.52=7.3+49.52=54.8+9.4=54.8+9.4=6.8+89.8=6.8+89.8=0.78+2.2=0.78+2.2=0.6-0.59=0.6-0.59=66.5-3.2=66.5-3.2=55.63-5.6=55.63-5.6=1
25、1.3+80=11.3+80=15.6-4.4=15.6-4.4=8.4+35.76=8.4+35.76=8.8-2.69=8.8-2.69=62.9-2.17=62.9-2.17=6.08+12.3=6.08+12.3=3.9+1.32=3.9+1.32=15.78+23.9=15.78+23.9=4.5-1.5=4.5-1.5=3.7+7.25=3.7+7.25=64.79-8.67=64.79-8.67=5.3+19.45=5.3+19.45=4.86-0.42=4.86-0.42=3.06+8.45=3.06+8.45=4.64+2.36=4.64+2.36=7.8+45.22=7.8
26、+45.22=1.8+5.75=1.8+5.75=0.63+4.5=0.63+4.5=29.9+5.6=29.9+5.6=4.78+3.94=4.78+3.94=-98.8+0.08=98.8+0.08=47.3+5.04=47.3+5.04=33.1-7.65=33.1-7.65=6.07-5.63=6.07-5.63=56.3-28.7=56.3-28.7=1.62-1.58=1.62-1.58=2.15+10.86=2.15+10.86=81.1-14.9=81.1-14.9=4.2+3.76=4.2+3.76=12.7-0.55=12.7-0.55=7.68-2.74=7.68-2.7
27、4=5.58-1.75=5.58-1.75=12.45-0.65=12.45-0.65=6.32+8.3=6.32+8.3=27.3+73.2=27.3+73.2=4.22+8.46=4.22+8.46=5.63+1.25=5.63+1.25=9.36-1.59=9.36-1.59=7.65-4.19=7.65-4.19=3.9+7.5=3.9+7.5=16.9-1.79=16.9-1.79=5.63+9.5=5.63+9.5=4.6-0.52=4.6-0.52=3.56+5.75=3.56+5.75=2.64+2.36=2.64+2.36=76.8+5.2=76.8+5.2=1.5+5.5=
28、1.5+5.5=0.68+4.85=0.68+4.85=39.7+5.06=39.7+5.06=2.42+0.59=2.42+0.59=57.5+1.36=57.5+1.36=6.09+8.04=6.09+8.04=4.98+1.89=4.98+1.89=6.4+53.6=6.4+53.6=32.01+5.05=32.01+5.05=24.4-15.5=24.4-15.5=3.6+20.02=3.6+20.02=41.2-2.66=41.2-2.66=4.4+7.68=4.4+7.68=92.7-0.05=92.7-0.05=87.68-20.7=87.68-20.7=75.8-17.5=75
29、.8-17.5=42.5-23.65=42.5-23.65=56.2+9.38=56.2+9.38=67.3+23.92=67.3+23.92=4.72+8.49=4.72+8.49=5.63+1.27=5.63+1.27=9.06-1.59=9.06-1.59=7.95-4.9=7.95-4.9=2.42+0.59=2.42+0.59=57.5+1.36=57.5+1.36=6.09+8.04=6.09+8.04=4.98+1.89=4.98+1.89=6.4+53.6=6.4+53.6=32.01+5.05=32.01+5.05=24.4-15.5=24.4-15.5=3.6+20.02=
30、3.6+20.02=41.2-2.66=41.2-2.66=4.4+7.68=4.4+7.68=55.63-5.6=55.63-5.6=11.3+80=11.3+80=15.6-4.4=15.6-4.4=8.4+35.76=8.4+35.76=8.8-2.69=8.8-2.69=62.9-2.17=62.9-2.17=6.08+12.3=6.08+12.3=3.9+1.32=3.9+1.32=15.78+23.9=15.78+23.9=4.5-1.5=4.5-1.5=4.78+3.94=4.78+3.94=98.8+0.08=98.8+0.08=47.3+5.04=47.3+5.04=33.1
31、-7.65=33.1-7.65=6.07-5.63=6.07-5.63=56.3-28.7=56.3-28.7=1.62-1.58=1.62-1.58=2.15+10.86=2.15+10.86=81.1-14.9=81.1-14.9=4.2+3.76=4.2+3.76=2.32+0.59=2.32+0.59=6.5+18.9=6.5+18.9=6.9+8.4=6.9+8.4=4.9+1.87=4.9+1.87=6.5+13.56=6.5+13.56=优选.33.51+5.5=33.51+5.5=48.43-15.65=48.43-15.65=3.36+0.92=3.36+0.92=41.92
32、-2.6=41.92-2.6=4.5+17.58=4.5+17.58=26.5-15.7=26.5-15.7=39.1+2.09=39.1+2.09=27.37+6.58=27.37+6.58=48.6-47.9=48.6-47.9=50.43-34.4=50.43-34.4=1.6+20.47=1.6+20.47=13.29+25.58=13.29+25.58=四年级口算（七）四年级口算（七）211.9-11.8=211.9-11.8=5.63-5.21=5.63-5.21=1.3+8.56=1.3+8.56=14.6-0.34=14.6-0.34=8.24+3.76=8.24+3.76=8
33、.88-2.69=8.88-2.69=42.5-22.17=42.5-22.17=6.2+12.63=6.2+12.63=3.8+1.37=3.8+1.37=15.28+28.99=15.28+28.99=4.65-1.15=4.65-1.15=4.08+3.96=4.08+3.96=28.8+3.58=28.8+3.58=45.03+5.4=45.03+5.4=34.71-5.65=34.71-5.65=68.07-5.63=68.07-5.63=6.3-2.07=6.3-2.07=51.62-16.58=51.62-16.58=22.15+16.96=22.15+16.96=51.16-1
34、4.6=51.16-14.6=4.6+3.76=4.6+3.76=3.94+35.6=3.94+35.6=41.43+22.68=41.43+22.68=7.08+28.95=7.08+28.95=28.3+1.95=28.3+1.95=19.29-9.3=19.29-9.3=6.8-5.05=6.8-5.05=25.63-7.52=25.63-7.52=25.9+31.1=25.9+31.1=99.1+1.9=99.1+1.9=35.5+25.4=35.5+25.4=32.5+6.84=32.5+6.84=35.43-15.3=35.43-15.3=101.7-81.65=101.7-81.
35、65=17.26+56.17=17.26+56.17=53.69+39.05=53.69+39.05=8.99+58.06=8.99+58.06=-11.3+31.25=11.3+31.25=9.37-6.8=9.37-6.8=44.9-31.9=44.9-31.9=20.1-19.9=20.1-19.9=71.4+22.57=71.4+22.57=7.06+2.87=7.06+2.87=0.8+82.2=0.8+82.2=2.55+9.45=2.55+9.45=51.9-21.8=51.9-21.8=29.4-8.83=29.4-8.83=5.12+7.84=5.12+7.84=7.56+4
36、.36=7.56+4.36=四年级口算（八）四年级口算（八）81.9-56.45=81.9-56.45=35-15.6=35-15.6=18.26+3.8=18.26+3.8=71.05+2.25=71.05+2.25=40-27.35=40-27.35=16.09+7.01=16.09+7.01=3.46+5.05=3.46+5.05=11.16-2.36=11.16-2.36=145.8-15.3=145.8-15.3=128.9-17.7=128.9-17.7=35.5+41.9=35.5+41.9=13.56+24.44=13.56+24.44=33.8-25.6=33.8-25.6=
37、158.3-38.2=158.3-38.2=4.97+7.29=4.97+7.29=18.9+27.1=18.9+27.1=0.9+121.1=0.9+121.1=96.7+16.3=96.7+16.3=23.5-4.05=23.5-4.05=5.4+73.65=5.4+73.65=1.8+3.09=1.8+3.09=75.9-38.7=75.9-38.7=51.2-11.2=51.2-11.2=22.13+4.07=22.13+4.07=76-47.88=76-47.88=31.7+57.7=31.7+57.7=9.81-0.09=9.81-0.09=28.23-2.02=28.23-2.0
38、2=198.3-25.1=198.3-25.1=132.8-59.8=132.8-59.8=91.9-21.1=91.9-21.1=9.28+1.69=9.28+1.69=59.9+41.1=59.9+41.1=97.8+14.55=97.8+14.55=29.8-3.5=29.8-3.5=57.62+5.5=57.62+5.5=0.95+9.65=0.95+9.65=36.9+6.1=36.9+6.1=30.5-15.6=30.5-15.6=9.05-3.4=9.05-3.4=26.7+13.3=26.7+13.3=41.9-5.8=41.9-5.8=16.89-2.46=16.89-2.4
39、6=85.6-45.1=85.6-45.1=7.94+18.5=7.94+18.5=4.28-1.93=4.28-1.93=9.53+3.3=9.53+3.3=36.1-31.4=36.1-31.4=5.02+3.73=5.02+3.73=44.6-15.15=44.6-15.15=21.2+58.36=21.2+58.36=9.07+48.1=9.07+48.1=17.6-6.29=17.6-6.29=13.47+85.4=13.47+85.4=3.29+12.5=3.29+12.5=62.3-33.75=62.3-33.75=4.83+10.51=4.83+10.51=13.98+16.3
40、=13.98+16.3=6.03-3.7=6.03-3.7=9.84-2.77=9.84-2.77=8.15+32.5=8.15+32.5=35.82-5.67=35.82-5.67=优选.5.69+17.2=5.69+17.2=43.2-35.5=43.2-35.5=4.25-2.11=4.25-2.11=四年级口算（九）四年级口算（九）4.47+9.64=4.47+9.64=四年级口算（十一）四年级口算（十一）24.5-1.9=24.5-1.9=51.62-2.8=51.62-2.8=80.09-14.49=80.09-14.49=11.89+7.74=11.89+7.74=8.41-1.
41、16=8.41-1.16=4.05+44.83=4.05+44.83=57.63-40.43=57.63-40.43=25.54-17.32=25.54-17.32=4.46+36.8=4.46+36.8=25.64-5.01=25.64-5.01=34.9+35.5=34.9+35.5=74.32-8.75=74.32-8.75=5.93+6.13=5.93+6.13=37.5-4.06=37.5-4.06=四年级口算（十）四年级口算（十）10.73-2.19=10.73-2.19=14.01+3.99=14.01+3.99=8.63-7.73=8.63-7.73=27.9+25.55=27
42、.9+25.55=11.43+8.34=11.43+8.34=26.8-17.06=26.8-17.06=67.1-49.05=67.1-49.05=13.74+9.53=13.74+9.53=7.25+5.23=7.25+5.23=3.84-3.48=3.84-3.48=9.15-7.4=9.15-7.4=4.42+16.34=4.42+16.34=33.46-16.06=33.46-16.06=8.74+13.82=8.74+13.82=3.36-3.29=3.36-3.29=46.1+6.95=46.1+6.95=17.01-3.72=17.01-3.72=29.22+6.33=29.2
43、2+6.33=83.2-7.9=83.2-7.9=47.2-19.6=47.2-19.6=39.8+6.79=39.8+6.79=9.11+15.9=9.11+15.9=85.2-59.3=85.2-59.3=3.17+5.6=3.17+5.6=6.9-1.15=6.9-1.15=8.75+6.7=8.75+6.7=4.78+19.4=4.78+19.4=-69.2-30.4=69.2-30.4=16.08+7.78=16.08+7.78=12.25-7.62=12.25-7.62=36.28+24.9=36.28+24.9=51-35.6=51-35.6=6.11-2.2=6.11-2.2=
44、4.86+17.4=4.86+17.4=65.16-30.01=65.16-30.01=34.9+9.09=34.9+9.09=3.92-2.1=3.92-2.1=16.3+28.1=16.3+28.1=3.57+11.5=3.57+11.5=34.1-12.05=34.1-12.05=10.37+8.6=10.37+8.6=39.5-7.2=39.5-7.2=28.04-5.8=28.04-5.8=2.37+6.94=2.37+6.94=61-10.7=61-10.7=8.46+5.38=8.46+5.38=5.36+4.1=5.36+4.1=14.8+16.2=14.8+16.2=15.1
45、6-2.4=15.16-2.4=16.18+45.96=16.18+45.96=0.51+2.86=0.51+2.86=11.52+22.74=11.52+22.74=31.26-2.9=31.26-2.9=32.6+5.97=32.6+5.97=31.28+13.82=31.28+13.82=22.81-10.92=22.81-10.92=50.36+15.63=50.36+15.63=2.6+16.44=2.6+16.44=21.55+20.6=21.55+20.6=5.66+1.44=5.66+1.44=1.69+5.88=1.69+5.88=51.26+5.8=51.26+5.8=27
46、.3+4.4=27.3+4.4=53.6-16.83=53.6-16.83=22.54+6.66=22.54+6.66=13.2-1.66=13.2-1.66=23.4-12.48=23.4-12.48=4.56+12.56=4.56+12.56=46.25-5.6=46.25-5.6=23.56+12.45=23.56+12.45=22.11-3.87=22.11-3.87=63.25-7.78=63.25-7.78=24.26+15.83=24.26+15.83=18.37+15.7=18.37+15.7=1.83+9.26=1.83+9.26=13.02+5.99=13.02+5.99=
47、四年级口算（十二）四年级口算（十二）31.24-16.5=31.24-16.5=10.33-7.7=10.33-7.7=16.5+43.25=16.5+43.25=60.03+19.57=60.03+19.57=16.59-1.66=16.59-1.66=43.33-5.6=43.33-5.6=28.16-6.9=28.16-6.9=38.19-2.6=38.19-2.6=13.8+37.85=13.8+37.85=17.51-3.6=17.51-3.6=55.16-22.37=55.16-22.37=2.37+1.68=2.37+1.68=73.28+1.44=73.28+1.44=30.7
48、3+9.5=30.73+9.5=13.6-12.69=13.6-12.69=41.52-23.51=41.52-23.51=23.6-1.77=23.6-1.77=30.26-16.45=30.26-16.45=2.77-1.78=2.77-1.78=16.73-8.16=16.73-8.16=36.45+17.49=36.45+17.49=29.4-1.66=29.4-1.66=43.16-8.8=43.16-8.8=26.5-13.66=26.5-13.66=55.1-44.9=55.1-44.9=36.45+3.55=36.45+3.55=6.69+1.8=6.69+1.8=55.33-
49、6.9=55.33-6.9=优选.20.88-19.5=20.88-19.5=9.7+32.3=9.7+32.3=11-0.67=11-0.67=12.34+23.45=12.34+23.45=51.2+0.12=51.2+0.12=3.3+7.68=3.3+7.68=32.14+5.6=32.14+5.6=2.34+3.4=2.34+3.4=6.5+6.05=6.5+6.05=47.11-28.22=47.11-28.22=0.11+4.2=0.11+4.2=5.9+3.1=5.9+3.1=25.36-23.79=25.36-23.79=8.12-0.82=8.12-0.82=6.1+3.8
50、=6.1+3.8=5.3-2.89=5.3-2.89=31.8-0.9=31.8-0.9=5.4-4.6=5.4-4.6=2.09+43.6=2.09+43.6=42.9+6.5=42.9+6.5=2.13+2.7=2.13+2.7=16.25+8.67=16.25+8.67=5.36+6.7=5.36+6.7=4.9+2.6=4.9+2.6=13.44-2.48=13.44-2.48=4.4+6.57=4.4+6.57=49.2-13.61=49.2-13.61=15-1.6=15-1.6=3.5+16.8=3.5+16.8=1.02+2.8=1.02+2.8=四年级口算（十四）四年级口算（