题目内容
计算：（要求写出主要计算过程）
（1）[2÷（5.4-3
）×1
]÷3
（2）[（10.75-4
）×2
]÷[（1.125+
）÷（2.25÷10
）]．
（1）[2÷（5.4-3
| 1 |
| 4 |
| 4 |
| 3 |
| 8 |
| 9 |
（2）[（10.75-4
| 11 |
| 12 |
| 7 |
| 11 |
| 1 |
| 12 |
| 10 |
| 11 |
（1）[2÷（5.4-3
）×1
]÷3
，
=[2÷（
-
）×
]×
，
=[2÷（
-
）×
]×
，
=[2÷
×
]×
，
=2×
×
×
，
=（2×
）×（
×
），
=
×
，
=
；
（2）[（10.75-4
）×2
]÷[（1.125+
）÷（2.25÷10
）]，
=[（10
-4
）×
]÷[（
+
）÷（
÷
）]，
=[
×
]÷[
÷
]，
=
×
÷[
×
]，
=
×
÷
÷
，
=
×
×
×
，
=
，
=2
．
| 1 |
| 4 |
| 4 |
| 3 |
| 8 |
| 9 |
=[2÷（
| 27 |
| 5 |
| 13 |
| 4 |
| 7 |
| 3 |
| 9 |
| 35 |
=[2÷（
| 108 |
| 20 |
| 65 |
| 20 |
| 7 |
| 3 |
| 9 |
| 35 |
=[2÷
| 43 |
| 20 |
| 7 |
| 3 |
| 9 |
| 35 |
=2×
| 20 |
| 43 |
| 7 |
| 3 |
| 9 |
| 35 |
=（2×
| 20 |
| 43 |
| 7 |
| 3 |
| 9 |
| 35 |
=
| 40 |
| 43 |
| 3 |
| 5 |
=
| 24 |
| 43 |
（2）[（10.75-4
| 11 |
| 12 |
| 7 |
| 11 |
| 1 |
| 12 |
| 10 |
| 11 |
=[（10
| 9 |
| 12 |
| 11 |
| 12 |
| 29 |
| 11 |
| 9 |
| 8 |
| 1 |
| 12 |
| 9 |
| 4 |
| 120 |
| 11 |
=[
| 35 |
| 6 |
| 29 |
| 11 |
| 29 |
| 24 |
| 480 |
| 99 |
=
| 35 |
| 6 |
| 29 |
| 11 |
| 29 |
| 24 |
| 99 |
| 480 |
=
| 35 |
| 6 |
| 29 |
| 11 |
| 29 |
| 24 |
| 99 |
| 480 |
=
| 35 |
| 6 |
| 29 |
| 11 |
| 24 |
| 29 |
| 99 |
| 480 |
=
| 21 |
| 8 |
=2
| 5 |
| 8 |
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