递等式计算 2400÷80-14×2308-(240+360÷60)31×[868÷(98-91)]660-600÷15×4(165+35)×(124-74
递等式计算2400÷80-14×2308-(240+360÷60)31×[868÷(98-91)]660-600÷15×4(165+35)×(124-74)800÷[(3...
递等式计算 2400÷80-14×2308-(240+360÷60)31×[868÷(98-91)]660-600÷15×4(165+35)×(124-74)800÷[(350+150)÷10].
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(1)2400÷80-14×2
=30-28
=2;
(2)308-(240+360÷60)
=308-(240+6)
=308-246
=62;
(3)31×[868÷(98-91)]
=31×[868÷7]
=31×124
=3844;
(4)660-600÷15×4
=600-40×4
=600-160
=440;
(5)(165+35)×(124-74)
=200×50
=10000;
(6)800÷[(350+150)÷10]
=800÷[500÷10]
=800÷50
=16.
=30-28
=2;
(2)308-(240+360÷60)
=308-(240+6)
=308-246
=62;
(3)31×[868÷(98-91)]
=31×[868÷7]
=31×124
=3844;
(4)660-600÷15×4
=600-40×4
=600-160
=440;
(5)(165+35)×(124-74)
=200×50
=10000;
(6)800÷[(350+150)÷10]
=800÷[500÷10]
=800÷50
=16.
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