题目内容
2÷[（
-
）×9]×6
1.25×67.875+0.125×6787.5+125×0.53375．
| 1 |
| 27 |
| 1 |
| 36 |
1.25×67.875+0.125×6787.5+125×0.53375．
（1）2÷[（
-
）×9]×6，
=2÷[
×9-
×9]×6，
=2÷[
-
]×6，
=2÷
×6，
=2×12×6，
=144；
（2）1.25×67.875+0.125×6787.5+125×0.53375，
=125×0.67875+125×6.7875+125×0.53375，
=125×（0.67875+6.7875+0.53375），
=125×8，
=1000．
| 1 |
| 27 |
| 1 |
| 36 |
=2÷[
| 1 |
| 27 |
| 1 |
| 36 |
=2÷[
| 1 |
| 3 |
| 1 |
| 4 |
=2÷
| 1 |
| 12 |
=2×12×6，
=144；
（2）1.25×67.875+0.125×6787.5+125×0.53375，
=125×0.67875+125×6.7875+125×0.53375，
=125×（0.67875+6.7875+0.53375），
=125×8，
=1000．
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