问题
解答题
估算下列各题.
92×48≈
623÷18≈
703÷38≈
417÷63≈
答案
(1)92×48,
≈90×50,
=4500;
(2)623÷18,
≈620÷20,
=31;
(3)703÷38,
≈700÷35,
=20;
(4)417÷63,
≈420÷60,
=7.
故答案为:4500,31,17.5,7.
估算下列各题.
92×48≈
623÷18≈
703÷38≈
417÷63≈
(1)92×48,
≈90×50,
=4500;
(2)623÷18,
≈620÷20,
=31;
(3)703÷38,
≈700÷35,
=20;
(4)417÷63,
≈420÷60,
=7.
故答案为:4500,31,17.5,7.