计算,写出主要过程,能简算的要简算.34+34÷29×227=(3-512)×331-14=6-38÷274-718=37÷154+34×127=948÷34÷6=[(2-14)÷34]×34=-六年级数学
7 |
18 |
=5
5 |
9 |
④
3 |
7 |
15 |
4 |
3 |
4 |
12 |
7 |
=
3 |
7 |
4 |
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7 |
=
3 |
7 |
4 |
15 |
=
3 |
7 |
49 |
15 |
=1
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5 |
⑤
9 |
48 |
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=
9 |
48 |
4 |
3 |
1 |
6 |
=
1 |
24 |
⑥[(2-
1 |
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=[
7 |
18 |
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7 |
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4 |
12 |
7 |
3 |
7 |
4 |
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12 |
7 |
3 |
7 |
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3 |
7 |
49 |
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2 |
5 |
9 |
48 |
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9 |
48 |
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1 |
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1 |
24 |
1 |
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4 |