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(1) |
20 ×3= |
11 ×3= |
4000 ×2= |
|
230 ×3= |
101 ×5= |
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|
(2) |
700 ×3= |
1200 ×6= |
60 ×9= |
|
4500 ×0= |
210 ×4= |
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|
(3) |
90 ×9= |
400 ×5= |
1000 ×7= |
|
800 ×6= |
110 ×8= |
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(4) |
24 ×2= |
1700 ×5= |
900 ×3= |
口算下面各题.
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(1)0 ×3= |
2 ×0= |
4 ×0= |
0 ×9= |
7 ×0= |
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(2)0 ×8= |
4 +0= |
0 ×6= |
8 ×0= |
0 +9= |
你能快速算出下面各题吗?试一试.
|
(1) |
2 ×7+8= |
12 ×4= |
| (2) |
43 +29= |
6 ×3+5= |
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(3) |
50 ×7= |
500 -9= |
| (4) |
7 ×8+6= |
120 ×4= |
|
(5) |
30 ×6= |
864 -300= |