题目内容
计算:1001×5
+198÷198
+1
=
3 |
13 |
198 |
199 |
1 |
200 |
5238
5238
.分析:根据题意,5
=5+
,198
=198+
,然后再根据乘法分配律进行简算即可.
3 |
13 |
3 |
13 |
198 |
199 |
198 |
199 |
解答:解:
1001×5
+198÷198
+1
,
=1001×(5+
)+198÷(198+
)+1
,
=1001×5+1001×
+198÷[198×(1+
)]+1
,
=5005+231+198÷198÷
+1
,
=5236+1×
+1
,
=5236+(
+1
),
=5236+2,
=5238.
故答案为:5238.
1001×5
3 |
13 |
198 |
199 |
1 |
200 |
=1001×(5+
3 |
13 |
198 |
199 |
1 |
200 |
=1001×5+1001×
3 |
13 |
1 |
199 |
1 |
200 |
=5005+231+198÷198÷
200 |
199 |
1 |
200 |
=5236+1×
199 |
200 |
1 |
200 |
=5236+(
199 |
200 |
1 |
200 |
=5236+2,
=5238.
故答案为:5238.
点评:根据题意,弄清运算顺序,找准所运用的运算定律,然后再进一步计算即可.
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