题目内容
计算:1÷50+2÷50+…+98÷50+99÷50=______.
1÷50+2÷50+…+98÷50+99÷50
=
+
+
+…+
+
,
=
,
=
,
=
,
=99;
故答案为:99.
=
| 1 |
| 50 |
| 2 |
| 50 |
| 3 |
| 50 |
| 98 |
| 50 |
| 99 |
| 50 |
=
| 1+2+3+…+99 |
| 50 |
=
| (1+99)×99÷2 |
| 50 |
=
| 50×99 |
| 50 |
=99;
故答案为:99.
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