按要求写出表中各小数的近似数．
| |
保留整数 |
保留一位小数 |
保留两位小数 |
保留三位小数 |
| 9.8756 |
_________ |
_________ |
_________ |
_________ |
| 0.9709 |
_________ |
_________ |
_________ |
_________ |
| 2.4729 |
_________ |
_________ |
_________ |
_________ |
47×2.8+52×2.8+2.8 37.6﹣4.87﹣1.1331﹣[0.5×（6﹣5.7）+18]
．
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=5.6÷0.07=1000﹣374=
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