题目内容
看谁算得准（能简算要简算）．
（
+
）×8+
÷[
×（0.4+
）]
41×9.9+4.1．
（
| 5 |
| 8 |
| 2 |
| 27 |
| 11 |
| 27 |
| 9 |
| 20 |
| 3 |
| 2 |
| 4 |
| 5 |
41×9.9+4.1．
（
+
）×8+
=
×8+
×8+
=5+（
+
）
=6；
÷[
×（0.4+
）]
=
÷[
×
]
=
÷
=
；
41×9.9+4.1
=4.1×99+4.1
=4.1×（99+1）
=410．
| 5 |
| 8 |
| 2 |
| 27 |
| 11 |
| 27 |
=
| 5 |
| 8 |
| 2 |
| 27 |
| 11 |
| 27 |
=5+（
| 16 |
| 27 |
| 11 |
| 27 |
=6；
| 9 |
| 20 |
| 3 |
| 2 |
| 4 |
| 5 |
=
| 9 |
| 20 |
| 3 |
| 2 |
| 6 |
| 5 |
=
| 9 |
| 20 |
| 9 |
| 5 |
=
| 1 |
| 4 |
41×9.9+4.1
=4.1×99+4.1
=4.1×（99+1）
=410．
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