题目内容
脱式计算.
52-18÷6; 46×23-175; 232+71×16; 36×25÷5.
52-18÷6; 46×23-175; 232+71×16; 36×25÷5.
考点:整数四则混合运算
专题:运算顺序及法则
分析:(1)先算除法,再算减法;
(2)先算乘法,再算减法;
(3)先算乘法,再算加法;
(4)按照从左到右的顺序计算.
(2)先算乘法,再算减法;
(3)先算乘法,再算加法;
(4)按照从左到右的顺序计算.
解答:
解:(1)52-18÷6
=52-3
=49;
(2)46×23-175
=1058-175
=883;
(3)232+71×16
=232+12336
=12568;
(4)36×25÷5
=900÷5
=180.
=52-3
=49;
(2)46×23-175
=1058-175
=883;
(3)232+71×16
=232+12336
=12568;
(4)36×25÷5
=900÷5
=180.
点评:整数混合运算的关键是抓住运算顺序,正确按运算顺序计算即可.
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