

Rounding
Presentation
•
Mathematics
•
3rd Grade
•
Medium
Standards-aligned
Jennifer Irish
Used 459+ times
FREE Resource
8 Slides • 8 Questions
1
Rounding

2
Rounding
Rounding means replacing a number with an approximate value that has a shorter and simpler form.
You use rounding when estimating.
3
How do you round?
I have a wonderful rap to help you.
4
Watch my video
https://www.youtube.com/watch?v=41QZvFIC8mk
5
You may be asked to round to different places.
6
Example of rounding to the tens
478 rounded to the tens is 480
63 rounded to the tens is 60
1,325 rounded to the tens is 1,330
Notice they all end in a zero.
7
Examples of rounding to the hundreds
98 rounded to the hundreds would be 100
320 rounded to the hundres would be 300
2,587 rounded to the hundreds would be 2,600
Notice the last two digits are zeros.
8
Examples of rounding to the thousands
3,425 rounded to the thousands would be 3,000
6,892 rounded to the thoudsands would be 7,000
58,100 rounded to the thousands would be 58,000
Notice tht the last three digits are zeros.
9
Multiple Choice
What is 78 rounded to the tens?
70
80
75
10
Multiple Choice
What is 9 rounded to the tens?
5
0
10
11
Multiple Choice
What is 39 rounded to the tens?
30
40
12
Multiple Choice
What is 451 rounded to the tens?
460
450
500
13
Multiple Choice
What is 1,209 rounded to the tens?
1,200
1,210
1,000
14
Multiple Choice
What is 714 rounded ot the hundreds?
800
710
700
15
Multiple Choice
What is 3,521 rounded to the thousands?
3,500
4,000
3,520
16
Poll
How do you feel about rounding so far?
I feel like I totally get it.
I feel like I kind of get it.
I feel like I really don't understand it.
Rounding

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