题目内容
(1)205×3-345
(2)54÷6+591
(3)670-45÷5
(4)264+6×6.
(2)54÷6+591
(3)670-45÷5
(4)264+6×6.
分析:按照整数四则混合运算的运算顺序计算,先算乘除再算加减.
解答:解:(1)205×3-345,
=615-345,
=270,
(2)54÷6+591,
=9+591,
=600,
(3)670-45÷5,
=670-9,
=661,
(4)264+6×6,
=264+36,
=300.
=615-345,
=270,
(2)54÷6+591,
=9+591,
=600,
(3)670-45÷5,
=670-9,
=661,
(4)264+6×6,
=264+36,
=300.
点评:此题主要考查没有括号的含有两级运算的整数四则混合计算.
练习册系列答案
相关题目