问题
解答题
脱式计算
720÷3÷6
828÷4÷3
34×20+34
13×20-13.
答案
(1)720÷3÷6
=240÷6
=40;
(2)828÷4÷3
=207÷3
=69;
(3)34×20+34
=680+34
=714;
(4)13×20-13
=260-13
=247.
脱式计算
720÷3÷6
828÷4÷3
34×20+34
13×20-13.
(1)720÷3÷6
=240÷6
=40;
(2)828÷4÷3
=207÷3
=69;
(3)34×20+34
=680+34
=714;
(4)13×20-13
=260-13
=247.