题目内容
198÷198
+1÷200.
| 198 |
| 199 |
198÷198
+1÷200,
=198÷
+
,
=198÷
+
,
=198÷
+
,
=198×
+
,
=
+
,
=1.
| 198 |
| 199 |
=198÷
| 198×199+198 |
| 199 |
| 1 |
| 200 |
=198÷
| 198×(199+1) |
| 199 |
| 1 |
| 200 |
=198÷
| 198×200 |
| 199 |
| 1 |
| 200 |
=198×
| 199 |
| 198×200 |
| 1 |
| 200 |
=
| 199 |
| 200 |
| 1 |
| 200 |
=1.
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