
数学减法运算
Presentation
•
Mathematics
•
2nd - 6th Grade
•
Easy
BRIDGET Moe
Used 6+ times
FREE Resource
7 Slides • 4 Questions
1
数学减法运算
18012021
2
3
不接位减法
每个位数可以直接进行减法运算
不需要借位
4
5
Open Ended
请写出一道不接位减法的横式。
6
借位减法运算
被减数小与减数
必须和其他位数借位进行运算
7
Multiple Choice
请选出借位减法的横式。
15-12=3
257-47=240
4502-2394=2108
8
Open Ended
竖式口诀3个对。对齐,对号,对单位。 什么是对号?
9
竹竿竖减法
用于连减法
10
砍竹竖减法
用于3个或以上的连减法
要有箭头
11
Poll
请回答以下题目,对或错。
减法运算的关键词如下:
少了、还剩、差
对 Yes
错 No
不知道 I don't know.
数学减法运算
18012021
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