计算. 349×101-349 306×35-4080÷24 7.09-2.88-3.12.
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计算.
349×101-349 | 306×35-4080÷24 | 7.09-2.88-3.12. |
![计算. 349×101-349 306×35-4080÷24 7.09-2.88-3.12.](/uploads/image/z/19098248-32-8.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%8E+349%C3%97101-349%26nbsp%3B+306%C3%9735-4080%C3%B724%26nbsp%3B+7.09-2.88-3.12%EF%BC%8E)
(1)349×101-349,
=349×(101-1),
=349×100,
=34900;
(2)306×35-4080÷24,
=10710-170,
=10540;
(3)7.09-2.88-3.12,
=7.09-(2.88+3.12),
=7.09-6,
=1.09.
=349×(101-1),
=349×100,
=34900;
(2)306×35-4080÷24,
=10710-170,
=10540;
(3)7.09-2.88-3.12,
=7.09-(2.88+3.12),
=7.09-6,
=1.09.