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计算.349×101-349306×35-4080÷247.09-2.88-3.12.
计算.349×101-349 306×35-4080÷24 7.09-2.88-3.12.
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2020-04-09 06:22
计算.349×101-349306×35-4080÷247.09-2.88-3.12.
计算.349×101-349 306×35-4080÷24 7.09-2.88-3.12.
(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.