[2.25+(335-1.21×511)]÷40%112+216+3112+4120+…+101110(5.4×113+635÷0.75)×125.5(1+23+34+45)×(23+34+45+56)-(1+23+34+45+56)×(23+34+45)-数学
=(5.4×
4 |
3 |
=(7.2+8.8)×125.5,
=16×125.5,
=2008;
(4)(1+
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=(1+
2 |
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3 |
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4 |
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3 |
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4 |
5 |
5 |
6 |
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