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用递等式计算:3.97+0.7-1.3230-(3.8+0.75)75.6-(14.3-8.3)65+32×4(47+33)×13(132-17)÷(31-8)

题目详情
用递等式计算:
3.97+0.7-1.32        
30-(3.8+0.75) 75.6-(14.3-8.3)
65+32×4               (47+33)×13        (132-17)÷(31-8)
▼优质解答
答案和解析
(1)3.97+0.7-1.32,
=4.67-1.32,
=3.35;

(2)30-(3.8+0.75),
=30-4.55,
=25.45;

(3)75.6-(14.3-8.3),
=75.6-6,
=69.6;

(4)65+32×4,
=65+128,
=193;

(5)(47+33)×13,
=80×13,
=1040;

(6)(132-17)÷(31-8),
=115÷23,
=5.