问题
解答题
估算下列各题
|
答案
(1)412÷62,
≈420÷60,
=7;
(2)639÷79,
≈640÷80,
=8;
(3)59×11,
≈60×10,
=600;
(4)378÷59,
≈360÷60,
=6.
估算下列各题
|
(1)412÷62,
≈420÷60,
=7;
(2)639÷79,
≈640÷80,
=8;
(3)59×11,
≈60×10,
=600;
(4)378÷59,
≈360÷60,
=6.