计算题:
(1)[(-)÷+]×
(2)(+-)×24
(3)÷[×(+)]
(4)+(+)×.
网友回答
解:(1)[(-)÷+]×,
=[]×,
=[]×,
=×,
=;
(2)(+-)×24,
=()×24,
=×24,
=15;
(3)÷[×(+)],
=÷[],
=,
=0.75;
(4)+(+)×,
=,
=,
=1.
解析分析:依据四则运算计算方法,先算第二级运算,再算第一级运算,如果只含有同一级运算,按照从左到右顺序计算,有括号先算括号里面的解答.
点评:本题考查知识点:正确运用四则运算计算方法进行计算.