早教吧 育儿知识 作业答案 考试题库 百科 知识分享

计算.①125×64×25②57×99+62③384÷16×32④4673-867+567⑤462+3018+238+182.

题目详情
计算.
①125×64×25       ②57×99+62       ③384÷16×32      ④4673-867+567      ⑤462+3018+238+182.

▼优质解答
答案和解析
①125×64×25,
=(125×8)×(8×25),
=1000×200,
=200000;

②57×99+62,
=57×100-57+62,
=5700-57+62,
=5705;

③384÷16×32,
=384×(32÷16),
=384×2,
=768;

④4673-867+567,
=4673-(867-567)
=4673-300,
=4373;

⑤462+3018+238+182,
=(462+238)+(3018+182),
=700+3200,
=3900.