1. ITL516 Week 3 Math Concept Screencast
By Mark St. John

2. Grade 3 Numbers and operations in Base Ten Cluster A Standard # 1
3.NBT.A.1 - Use place value understanding to round whole numbers to the nearest 10 or 100.
Grade 3 Numbers and operations in Base Ten Cluster A Standard # 1

3. GAS - Filling up your vehicle’s Gas Tank
BUDGET - Determining the affordability of an item
PARTY SUPPLIES – Can we meet the demands of our guest list
Rule for Rounding:
4 or less ROUND DOWN
5 or more ROUND UP
Real world situations that require us to Estimate or round whole numbers

4. round these whole numbers to the nearest 10
68:
8 is more than 5
so we round up to 70.
44:
4 is less than 5
so we round down to 40.
86:
6 is more than 5
so we round up to 90.
32:
2 is less than 5
so we round down to 30.
75:
5 is equal to 5
so we round up to 80.
round these whole numbers to the nearest 10

5. round these whole numbers to the nearest 100
110:
1 is less than 5
so we round down to 100.
278:
7 is more than 5
so we round up to 300.
325:
2 is less than 5
so we round down to 300.
450:
5 is equal to 5
so we round up to 500.
561:
6 is more than 5
so we round up to 600.
round these whole numbers to the nearest 100

6. How many shoes does your immediate family own?
08-pairs = 16 shoes Mark
10-pairs = 20 shoes Erika
15-pairs = 30 shoes Jodi
20-pairs = 40 shoes Tydus
Family Total = 106 shoes
How many shoes does your immediate family own?

7. What are some examples that you have witnessed during your day?B C D
What are some examples that you have witnessed during your day?

8. ITL516 Week 3 Math Concept Screencast
References
Progressions for the Common Core State Standards in Mathematics. (2011, June 20).
Retrieved from:  
-common-core-state-standards-for-mathematics
Common Core Math Standards Common Core State Standards Initiative
Retrieved from:  
Gojak, L., Miles, R.H., & National Council of Teachers of Mathematics. (2016): The Common Core
Math Standards Decoded  
ITL516 Week 3 Math Concept Screencast