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脱式计算.50.4÷3.2×2.08204÷(3.4×0.5)(43.26+2.34)÷7.5(20-0.8×9)×5.7.

题目详情
脱式计算.
50.4÷3.2×2.08 204÷(3.4×0.5) (43.26+2.34)÷7.5 (20-0.8×9)×5.7.
▼优质解答
答案和解析
(1)50.4÷3.2×2.08,
=15.75×2.08,
=32.76;

(2)204÷(3.4×0.5),
=204÷1.7,
=120;

(3)(43.26+2.34)÷7.5,
=45.6÷75,
=6.08;

(4)(20-0.8×9)×5.7,
=(20-7.2)×5.7,
=12.8×5.7,
=72.96.