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三年级下小数点口算420道之欧阳音创编

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欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

3.9+= 6.2-3.112.65.3+6.8= =

= 4.2-3.1

4.3+2.6= 时间:创2021.0作= 5.9-3.63.11 :欧阳5.8+1.6= 音 =

4.8-5.741.9+5.2

6.2-3.6

= =

9.3+6.85.8+3.3

5.2-3.2

= =

6.6-3.14.2+3.9

4.2+1.5

= =

3+6.5=

1.5+3.6

欧阳音创编 2021.03.11 2021.03.11

5.2-5= 4.6-3.2= 1.6-0.7= 5.2-0.8= 4.6-0.8= 4.6+3.8= 0.9+6.3=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

1.2+3.61.25-6+0.3= = 0.75=

0.6+3.210+3.5= 3.6+1.3= 1.02-

= 0.8-0.31.02= 4.3-3.5= 3.5+3.6= 0.5+0.9= 0.6-0.2= 2.9-0.85= 0.6-0.45= 1.2-0.3= 1.6+5.3= 1.2-0.5

= 0.25-

= 6.2-3.80.15= 0.8+6.4=

1.7+3=

欧阳音创编 2021.03.11 2021.03.11

0.3+1.9= 1.5+0.9= 5+4.8= 6-5.9= 1.2-0.8= 2.2-0.5= 1.5+2.0= 2.3+4.8

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

= 0.74= 3.5+1.610-9.8= 0.25+

= 1.2-1.20.95= 0.5+1.3= 1.25-= 3.5+3.51.25= 0.6+0.46= 0.36+2.3= 1.2+1.28= 1.5-1.42= 1.25+= 0.9+4.20.33= 1.6-1.32= 1.22+= 3.5+1.60.33= 1.2-1.12= 0.8+4.2= 0.32

2.2+.3=

欧阳音创编 2021.03.11 2021.03.11

0.8-0.4= 1.3-0.9= 3.5-2.6= 1.2+0.3= 6+3.2= 5+4.3= 6+5.3= 4+3.5= 6.2+8=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

2.6+5= 0.25+= 7.7+8= 0.24=

4.5-2.39.9-9= 0.22+3.8= 6.3-6= = 6.2-3.2

5.2+5= 0.33+

= 1.1+6= 0.15= 1.8-0.91.2+0.60.14+= = 0.25= 1.6-0.51.6-1= 0.81+= 0.6+0.50.25= 2.5-0.3= 0.6+2.9= 0.12+

= 1.3+2.60.13=

1.9-1.5

欧阳音创编 2021.03.11 2021.03.11

2.5+0.4= 3.6+0.56= 1.2+0.08= 1.3+3.02= 3.25+

3.14= 1.26+2.03= 0.33

+欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

1.02= 1.2+4.5= 0.36-

= 2.6-2.40.25= 3.2+2.1= 0.35+= 3.5+1.50.24= 6.5-3.7= 0.26-= 2.8-2.50.15= 4.5+2.8= 0.38+= 1.11+

0.27= 4.6+1.31.22= 0.19+= 1.33+0.37= 2.5+5.21.22= 0.9+0.7= 1.44-=

1.9+1.7

1.33=

欧阳音创编 2021.03.11 2021.03.11

0.22+

0.33=

0.5+0.3= 3.06-

3.02= 0.2+0.57= 0.44+0.36= 0.45-0.32= 0.16

+欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

0.32= 3.8-2.61.02= 0.35-

= 3.5+3.50.21= 1.9+2.6= 0.66-= 1.6+1.230.25= 3.6-2.5= 0.12+= 1.55-2.30.32= 1.36+

= 2.6+3.52.36= 1.5+3.4= 3.6-1.6= 3.5-1.6= 2.6+2.5= 8.02-= 0.8+4.60.02= 3.6-3.1=

1.02

-=

欧阳音创编 2021.03.11 2021.03.11

3.7-2.8= 1.3-0.8= 2.6+0.69= 1.5+3.8= 7.2-3.5= 1.6+2.7= 4.6-2.3

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

= 1.33+

0.360.25=

-= 10.3+2.33.2+0.25= 2.55= 1.6+3.7= 3.08+= 10.250.25= 2.6+5.68.75=0.36-= 110.30.24= 1.2-0.699.3=1.25+= 3.250.33= 2.3+0.663.65=4.02-= 1.02

3.02= 11.02

0.02=1.08-11.02= 1.061.03=

10.3-2.3

0.06=欧阳音创编 2021.03.11 2021.03.11

1.3-3.24= 1.25-

1.35= 0.28+0.36= 6.2-3.5= 2.3-1.8= 3.7+2.6

欧阳音创编

-+--

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

= 10.3+10= 3.8+1.5= 5.2+3.4= 11.1+

= 2.4+10.211.9= 6.6+5.5= 10.5-2.5= 3.2-0.6= 3.5+3.6= 3.02-= 1.85+

0.02= 2.6+1.31.23= 1.03+= 1.02+0.03= 15.3+

3.02= 1.25+6.34= 10.6+0.35= 3.6+9.820.6=

1.6-0.5

欧阳音创编 2021.03.11 2021.03.11

10.25-

3.06=

15.3+2.6= 6.32+2.5= 0.36+

0.28= 6.35-2.36= 10.3-6.8= 11.9

-欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

3.65= 2.05+= 10.2+

3.02=

8.2-6.73.02= 10.3+6.8= 3.05+2.6= 4.6-3.8= 6.5-3.9= 10.4+= 9.55

3.25= 4.09+

3.22= 12.6+3.06= 10.8+3.70.36= 5.2-3.7= 11.5+= 12.3+6.53.06= 5.61+= 6.02+3.13.02= 10.3+9.6=

10.6+3.5

欧阳音创编 2021.03.11 2021.03.11

5.9+15.8= 16.5-9.7= 21.05-14.9= 12.4-4.9= 3.6+2.8= 1.5+3.2= 6.2-0.6= 1.2+3.2=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

6.3+4.1= 3.5+10.3= 13.2-2.6= 5.8-4.2= 6.5+1.6= 23.5-4.6= 8.2-4.5= 8.5-2.3= 12.8-5.9= 6.6+3.9= 12.6+3.7= 20.6-

= 10.2+3.512.5= 4.9-5.8= 13.0+= 10.3+2.53.02= 2.36+

= 10.5-6.21.57= 6.5+3.4

1.36

+欧阳音创编 2021.03.11 2021.03.11

4.23= 6.14-

2.03= 13.2+10.5= 11.5-2.3= 41.2+3.1= 10.5-2.4= 9.8-7.5=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

4.7+5.2= 15.4= 6.9-5.83.263.15= +3.47= 1.8+6.9

6.2+4.6= 8.26= 5.4-3.11.34=6.1+2.9= 8.26= 6.8-2.63.45=5.32+

= 12.34.21= 11.3-2.66.52=6.25+= 4.573.14= 15.3-4.66.21=2.36+= 0.365.23= 8.21-

5.23=13.2

+3.01=

0.26

欧阳音创编 2021.03.11 2021.03.11

= 5.1-2.3

= 16.5+3.2

= 16.4-2.5

= 6.23

1.25= 12.5-3.4

欧阳音创编

--++++欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

18.2-3.6= 11.2+3.7= 6.2+3.5= 4.9-2.5= 13.2+

= 10.8+6.40.36= 9.8-3.1= 0.5+0.2= 9.32-

= 5.6+3.26.21= 1.2+3.4= 4.56+3.8= 1.26+

= 10.6+3.43.24= 4.5+6.7= 10.3+3.7= 15.3+2.3= 10.6+9.8= 16.3-4.5

2.36

+欧阳音创编 2021.03.11 2021.03.11

3.24= 0.68+

2.35= 9.21-3.01= 10.23

-10.23= 6.32-

5.24= 3.25+6.27= 3.05-2.06=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

10.3-3.2= 6.5-3.1= 10.4+6.8= 11.5+3.6= 8.5-3.6= 6.8+6.32= 13.2+

= 7.5-3.83.47= 12.3+6.9= 13.6+5.9= 16.3+

= 15.4+

3.25= 9.02+3.28= 15.2+6.13= 6.5-3.73.24= 5.6+3.5= 11.5+= 9.5-4.23.26= 15.3+6.2

10.5+3.4

欧阳音创编 2021.03.11 2021.03.11

= 16.3+3.5= 3.6+12.5= 11.2-3.4= 16.5-3.7= 15.3-6.8= 4.32-

1.35=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

10.6+3.8= 9.8-6.5= 4.9-3.7= 16.5-3.9= 6.5-3.2= 1.6-0.6= 0.36+

= 8.7+1.63.25= 4.8-1.9= 1.36+= 5.4+6.54.23= 6.7-3.5= 10.6-2.5= 15.3+6.2= 12.5+

= 6.3-2.83.46= 1.36+

= 15.6+3.53.26= 6.5-3.4

11.2

+欧阳音创编 2021.03.11 2021.03.11

3.24= 15.3+

3.06= 16.3+2.06= 6.5-3.2= 4.2-3.8= 7.2-6.8= 12.3+6.5=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

13.2+= 13.5+6.25= 5.6+3.02

6.03=

13.2-= 6.9+3.53.24= 5.4+0.25

= 10.3+= 3.5-2.93.02=

6.23+

= 11.2+3.28.24= 4.6-3.8= 11.6-

= 15.3-3.53.05= 12.6-9.5= 11.9+

= 14.3-6.83.65= 13.5-3.6= 15.46+

= 11.2+3.6

3.20=

11.3-8.5

欧阳音创编 2021.03.11 2021.03.11

= 10.5-7.8= 10.6+

3.25= 11.6+3.45= 8.9+6.5= 13.4+6.7= 16.8+5.69=

欧阳音创编

欧阳音创编 2021.03.11 欧阳音创编

2021.03.11

4.6+8.1= 16.8-9.8= 2.63+

= 2.07+

11.5= 16.4-2.9

3.06= 6.35+2.3= 12.03+= 10.2+

6.03= 6.32+3.06= 15.6-3.43.02= 16.33+= 5.24+0.25= 12.8-3.93.03= 6.35-= 12.6+2.34= 11.6+6.05= 0.11+3.48= 16.5-3.50.36= 16.2+3.2

3.02

+欧阳音创编 2021.03.11 2021.03.11

6.05=

时间:创2021.0作3.11 :欧阳音 欧阳音创编

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