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像小丁丁那样算:
|
360 ÷90=□ |
400 ÷50=□ |
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像小丁丁那样算:
|
240 ÷60=□ |
300 ÷30=□ |
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像小丁丁那样算:
|
180 ÷3=□ |
280 ÷70=□ |
算一算.
|
605 ×8= |
370 ×9= |
520 ×7= |
比一比,看谁的口算速度快.
|
(1) |
3 ×0= |
12 ×3= |
15 +0= |
| (2) |
18 -6= |
12 ×3= |
100 ×6= |
|
(3) |
120 ×0= |
0 ×9= |
0 ×0= |
口算下面各题.
|
(1)210 ×4= |
340 ×7= |
400 ×9= |
600 ×5= |
|
(2)230 ×3= |
120 ×7= |
50 ×4= |
200 ×5= |
你能快速口算出下面各题吗?
|
(1) |
40 ×2= |
200 ×8= |
| (2) |
6 ×3+5= |
33 ×3= |
|
(3) |
43 ×2= |
1000 ×9= |