计算下面各题(能简算的要简算).57÷(5-3×23)12÷14×(8+23)84×0.25+14×1658÷(34-12)15+45÷110-3548×(13-12+14)-数学
=
5 |
21 |
1 |
2 |
1 |
4 |
2 |
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=
1 |
2 |
1 |
4 |
26 |
3 |
=
1 |
2 |
26 |
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=
52 |
3 |
84×0.25+
1 |
4 |
=84×
1 |
4 |
1 |
4 |
=
1 |
4 |
=
1 |
4 |
=25;
5 |
8 |
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=
5 |
8 |
1 |
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=
5 |
8 |
=
5 |
2 |
1 |
5 |
4 |
5 |
5 |
21 |
1 |
2 |
1 |
4 |
2 |
3 |
1 |
2 |
1 |
4 |
26 |
3 |
1 |
2 |
26 |
3 |
52 |
3 |
1 |
4 |
1 |
4 |
1 |
4 |
1 |
4 |
1 |
4 |
5 |
8 |
3 |
4 |
1 |
2 |
5 |
8 |
1 |
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8 |
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2 |
1 |
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5 |