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脱式计算.(720÷8+21)×3400÷[300-(260-160)]35×(26+27)320-180÷3×5.

题目详情
脱式计算.
(720÷8+21)×3 400÷[300-(260-160)] 35×(26+27) 320-180÷3×5.
▼优质解答
答案和解析
(1)(720÷8+21)×3,
=(90+21)×3,
=111×3,
=333;

(2)400÷[300-(260-160)],
=400÷[300-100],
=400÷200,
=2;

(3)35×(26+27),
=35×53,
=1855;

(4)320-180÷3×5,
=320-60×5,
=320-300,
=20.