
subtraction
Presentation
•
Mathematics
•
3rd Grade
•
Practice Problem
•
Medium
+5
Standards-aligned
Kathleen Mercier
Used 15+ times
FREE Resource
1 Slide • 10 Questions
1
Act to Subtract
Subtraction Strategies
2
Multiple Select
When we add to subtract, which number do we start with?
the greater number because we are counting back.
the lesser number because we are adding up.
it doesn't matter when you subtract.
3
Multiple Choice
When we count back to subtract, we start with the
The higher number because we count back.
The lower number because we count up.
it doesn't matter in subtraction.
4
Multiple Choice
When subtracting by stacking, which number goes on top?
The largest number because it is what you are subtracting.
Whichever number has the largest ones place.
It doesn't matter.
5
Multiple Choice
What is 421-300?
300
100
121
6
Multiple Choice
What is 560-243
317
323
300
7
Multiple Choice
Which number goes on top if you subtract by stacking and use place value? 721-456?
456
721
it doesn't matter
8
Multiple Choice
When counting up to subtract, which number goes on the numberline first in the problem 623-133?
133
623
it doesn't matter
9
Multiple Choice
When counting back on an open number line, which number do you start with in the problem 765-700?
700
765
it doesn't matter
10
Poll
On a scale: how do you feel about subtracting on a number line?
4- I can teach someone
3- I understand well
2- I need some help
1- I don't get it at all
11
Poll
On a scale, how do you feel about subtracting with regrouping using the stacked method?
4- I can teach someone
3- I understand
2- I still make mistakes
1- I need help
Act to Subtract
Subtraction Strategies
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