Estimation
Presentation
•
Mathematics
•
3rd - 4th Grade
•
Hard
Joseph Anderson
FREE Resource
3 Slides • 7 Questions
1
Estimate the Sum with Rounding
2
How do you estimate the sum?
(hundreds place)
If the equation is..... 234 + 641
First, round both numbers to the nearest hundred and rewrite the equation
234 rounds down to 200
641 round down to 600
The new equation is 200+600. We know that equals 800!
3
Multiple Choice
What is 234 rounded to the nearest hundred?
300
200
100
230
4
Multiple Choice
What is 457 rounded to the nearest hundred?
400
500
460
1,000
5
Poll
Do you feel that you need more practice with rounding in the hundreds?
Yes
A little bit
No
6
Multiple Choice
Estimate the sum! What would be the new equation be when we round in the hundreds place?
500+200
400+300
700+100
7
Multiple Choice
Estimate the sum! What would be the new equation be when we round in the hundreds place?
300+700
200+700
300+800
8
Multiple Choice
Estimate the sum! First round in the hundreds place, then solve!
300+700= 1,000
200+700= 900
300+800= 1,000
9
Multiple Choice
Estimate the sum! First round in the hundreds place, then solve!
200+900= 1,100
100+900= 1,000
0+900= 900
10
Great job!
If you made a mistake, it means you're learning! Yay!
Estimate the Sum with Rounding
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