直接写出得数.
600×80= 180×40= 10-0.08= 12.2+4.8=
+
=
-
= 12.03+4.7= 360×20=
600×80= 180×40= 10-0.08= 12.2+4.8=
![](https://img.xkw.com/dksih/QBM/2018/6/6/1961264045948928/1961652903010304/STEM/a7cc729e22bf4180a484921a11c4f098.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2018/6/6/1961264045948928/1961652903010304/STEM/c2c69a8474bf44c19cfe48a3a8d368da.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2018/6/6/1961264045948928/1961652903010304/STEM/b52563e23b58467588e4ca5864e2b002.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2018/6/6/1961264045948928/1961652903010304/STEM/ce7cb2c44ce34d33a43af4b2d4c870a8.png?resizew=7)
更新时间:2018-06-06 22:15:57
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【知识点】 口算
相似题推荐
计算题-口算和估算
|
较易
(0.85)
【推荐1】口算下面各题.
56+37= 80-16= 31.5+5= 12-1.1=
1.2×0.2= 2.87÷0.7=
=
30÷50= 25×8=
= 12
= 1
0
=
56+37= 80-16= 31.5+5= 12-1.1=
1.2×0.2= 2.87÷0.7=
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca14a33d3c03769d53a9be8e01d648b.png)
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您最近一年使用:0次
计算题-口算和估算
|
较易
(0.85)
【推荐2】直接写得数.
28+9= 12+40= 9+46= 25-7=
12+7= 24+62= 80+10= 52-40=
28+9= 12+40= 9+46= 25-7=
12+7= 24+62= 80+10= 52-40=
您最近一年使用:0次