题目内容
脱式计算下面各题.
7.6÷0.19×0.35
3.61÷(8.2-6.3)
72.5-62.4×0.8÷3.2.
7.6÷0.19×0.35
3.61÷(8.2-6.3)
72.5-62.4×0.8÷3.2.
考点:小数四则混合运算
专题:运算顺序及法则
分析:(1)从左往右依次运算.
(2)先算括号内的,再算括号外的.
(3)先算乘除,再算减法.
(2)先算括号内的,再算括号外的.
(3)先算乘除,再算减法.
解答:
解:(1)7.6÷0.19×0.35
=40×0.35
=14
(2)3.61÷(8.2-6.3)
=3.61÷1.9
=1.9
(3)72.5-62.4×0.8÷3.2
=72.5-49.92÷3.2
=72.5-15.6
=56.9
=40×0.35
=14
(2)3.61÷(8.2-6.3)
=3.61÷1.9
=1.9
(3)72.5-62.4×0.8÷3.2
=72.5-49.92÷3.2
=72.5-15.6
=56.9
点评:完成此题,应注意运算顺序和运算法则.
练习册系列答案
相关题目