问题
解答题
用简便方法计算.
(1)(250+165)÷5
(2)(702-213-414)÷3.
答案
(1)(250+165)÷5
=250÷5+165÷5
=50+33
=83;
(2)(702-213-414)÷3
=702÷3-213÷3-414÷3
=234-71-138
=25;
故答案为83,25.
用简便方法计算.
(1)(250+165)÷5
(2)(702-213-414)÷3.
(1)(250+165)÷5
=250÷5+165÷5
=50+33
=83;
(2)(702-213-414)÷3
=702÷3-213÷3-414÷3
=234-71-138
=25;
故答案为83,25.