题目内容
1001×5
+198÷198
+1
．
| 2 |
| 13 |
| 198 |
| 199 |
| 1 |
| 200 |
考点：运算定律与简便运算
专题：运算定律及简算
分析：利用乘法分配律计算，1001×5
+198÷198
+1
=1001×
+198÷
+
=77×67+198×
+
，即可得解．
| 2 |
| 13 |
| 198 |
| 199 |
| 1 |
| 200 |
| 67 |
| 13 |
| 198×199+198 |
| 199 |
| 201 |
| 200 |
| 199 |
| 198×(199+1) |
| 201 |
| 200 |
解答：
解：1001×5
+198÷198
+1
=1001×
+198÷
+
=77×67+198×
+
=5159+
+
=5159+2
=5161
| 2 |
| 13 |
| 198 |
| 199 |
| 1 |
| 200 |
=1001×
| 67 |
| 13 |
| 198×199+198 |
| 199 |
| 201 |
| 200 |
=77×67+198×
| 199 |
| 198×(199+1) |
| 201 |
| 200 |
=5159+
| 199 |
| 200 |
| 201 |
| 200 |
=5159+2
=5161
点评：此题考查了乘法分配律的应用．
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