题目内容
| 怎样简便怎样算. 0×9+8 | 9×9+7 | 98×9+6 | 987×9+5. |
(1)0×9+8
=0+8
=8;
(2)9×9+7
=81+7
=88;
(3)98×9+6
=882+6
=888;
(4)987×9+5
=8883+5
=8888.
=0+8
=8;
(2)9×9+7
=81+7
=88;
(3)98×9+6
=882+6
=888;
(4)987×9+5
=8883+5
=8888.
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题目内容
| 怎样简便怎样算. 0×9+8 | 9×9+7 | 98×9+6 | 987×9+5. |