题目内容
0.1
+0.2
+0.3
+0.5
+0.6
+0.7
+0.8
=______．
| ． |
| 2 |
| ． |
| 3 |
| ． |
| 4 |
| ． |
| 6 |
| ． |
| 7 |
| ． |
| 8 |
| ． |
| 9 |
0.1
+0.2
+0.3
+0.5
+0.6
+0.7
+0.8
=
+
+
+
+
+
+
=
=
=3
．
故答案为：3
．
| ． |
| 2 |
| ． |
| 3 |
| ． |
| 4 |
| ． |
| 6 |
| ． |
| 7 |
| ． |
| 8 |
| ． |
| 9 |
=
| 11 |
| 90 |
| 21 |
| 90 |
| 31 |
| 90 |
| 51 |
| 90 |
| 61 |
| 90 |
| 71 |
| 90 |
| 81 |
| 90 |
=
| 11+21+31+51+61+71+81 |
| 90 |
=
| 327 |
| 90 |
=3
| 19 |
| 30 |
故答案为：3
| 19 |
| 30 |
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