题目内容
68÷4-48÷4和(68-48)÷4的计算结果相同.
正确
正确
.分析:68÷4-48÷4同时运算两个除法,再算减法;(68-48)÷4先算小括号里面的减法,再算括号外的除法;由此计算出结果后再比较.
解答:解:68÷4-48÷4,
=17-12,
=5;
(68-48)÷4,
=20÷4,
=5.
5=5;
故答案为:正确.
=17-12,
=5;
(68-48)÷4,
=20÷4,
=5.
5=5;
故答案为:正确.
点评:本题考查了乘法分配律的变形,要正确的运用.
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