(9-0.6×3.2)÷1.5 简便运算20.5-(3.64+2.8)÷0.4 3.06÷[1.8×(2.41-1.91)]

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/05 18:51:26

(9-0.6×3.2)÷1.5 简便运算20.5-(3.64+2.8)÷0.4 3.06÷[1.8×(2.41-1.91)]
(9-0.6×3.2)÷1.5 简便运算
20.5-(3.64+2.8)÷0.4 3.06÷[1.8×(2.41-1.91)]

(9-0.6×3.2)÷1.5 简便运算20.5-(3.64+2.8)÷0.4 3.06÷[1.8×(2.41-1.91)]
(9-0.6×3.2)÷1.5
=9÷1.5-0.6×3.2÷1.5
=6-0.4×3.2
=6-1.28
=4.72

(9-0.6×3.2)÷1.5
= 9÷1.5 - 0.6÷1.5×3.2
= 6 - 0.4×3.2
= 6 - 1.28
= 4.72