
估算基础知识
Flashcard
•
Mathematics
•
5th Grade
•
Practice Problem
•
Hard
NOR Moe
FREE Resource
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19 questions
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1.
FLASHCARD QUESTION
Front
什么是估算?
Back
估算是 用接近的数来计算,不用算得刚刚好。
2.
FLASHCARD QUESTION
Front
为什么要估算?
Back
✔ 算得快
✔ 很方便
✔ 知道答案大不大
3.
FLASHCARD QUESTION
Front
估算最常用的方法是什么?
Back
👉 四舍五入
4.
FLASHCARD QUESTION
Front
什么是四舍五入?
Back
0–4 👉 舍
5–9 👉 入
5.
FLASHCARD QUESTION
Front
估算缺点
Back
结果不精确
6.
FLASHCARD QUESTION
Front
适用场景
Back
购物、测量、时间管理
7.
FLASHCARD QUESTION
Front
估算与精确计算
Back
估算更快但不精确
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