1. Place Value: Hundreds, Tens, and Ones
Lesson 8.3
Place Value: Hundreds, Tens, and Ones
Objective: To extend place-value concepts to 100.
Math Journal 2, pages 156, 157
My Reference Book, pages
Math Masters Game Master, page 360
Math Masters, page 224
Activity Sheets 13 and 14
base-10 blocks, base-10 overhead blocks (optional)
dice (2 per partnership)
20 pennies per partnership
Home Link Masters (page 227)
calculator
number cards 0-9 (six of each card)
3" X 5" index cards (two per child)

2. Brain Caller Calculator Beat the Calculator
Materials: a calculator; a penny
Number of Players: 3
Directions: One player is the "Caller," a second player is the "Calculator,"
and the third is the "Brain."
Caller calls a problem or shows a math flash card. Does the Brain or Calculator answer faster?
Discuss: Were the results surprising?
Brain
Caller
Calculator

3. Math Message Online base-10 blocks. 100 Show 53 with base-10 blocks.

4. Home Link 8.2 Follow-Up
I can exchange 1 nickel for ____ pennies.
I can exchange 1 dime for ____ pennies.
I can exchange 1 dime for ____ nickels.
I can exchange 1 quarter for ____ nickels. 1 4 5 6 2 8 9 3 7

5. Why are 4 longs and 13 cubes equivalent to 5 longs and 3 cubes?
Math Message Follow-Up
Online base-10 blocks.
Why are 4 longs and 13 cubes equivalent to 5 longs and 3 cubes?
100 10 1

6. Online base-10 blocks.
Display 2 flats, 4 longs, and 3 cubes on your place-value mat.
100 10 1
2 flats stand
for 2 hundreds
4 longs stand
for 4 tens
3 cubes stand
for 3 ones
What number do these base-10 blocks show?

7. Online base-10 blocks.
Display 1 flat, 4 longs and 6 cubes on your place-value mat.
100 10 1 .

8. Online base-10 blocks.
Display 2 flats and 6 cubes.
100 10 1

9. Online base-10 blocks.
Display 2 flats and 7 longs.
100 10 1

10. Online base-10 blocks. 100 10 1 What number is shown?
Math Masters, page 224
Display 1 flat, 12 longs, and 6 cubes on your Place-Value Mat.
100 10 1
What number is shown?

11. Online base-10 blocks.
Display 2 flats, 15 longs, and 2 cubes on your place-value mat.
100 10 1
What number is shown?

12. Online base-10 blocks. 100 10 1 What number is shown?
Display 1 flat, 3 longs, and 16 cubes on your place-value mat.
100 10 1
What number is shown?

13. Online base-10 blocks.
Display 3 flats and 12 cubes on your place-value mat.
100 10 1
What number is shown?

14. Online base-10 blocks. 100 10 1 What number is shown?
Display 1 flat and 12 longs on your place-value mat.
100 10 1
What number is shown?

15. Online base-10 blocks.
Display 3 flats, 4 longs, and 10 cubes on your place-value mat.
100 10 1
What number is shown?

16. Online base-10 blocks.
Display 2 flats, 10 longs, and 5 cubes on your place-value mat.
100 10 1
What number is shown?

17. Online base-10 blocks.
Display 2 flats, 13 longs, and 15 cubes on your place-value mat.
Show this number on your Place-Value Mat.
Try to tell the number without making the exchanges.
100 10 1

18. Math Journal 2, page 156
Hundreds, Tens, and Ones Riddles

19. Playing Tric-Trac, Math Masters page 360

20. Math Journal 2, page 157
Math Boxes

21. Home Link Master, page 227

22. Counting Base-10 Blocks with a Calculator
First, take a small collection of cubes.
Program your calculator to count by 1's.
One partner counts each cube. The other partner counts on the calculator at the same time.
The ones place in the number that is displayed on their calculator changes each time a cube is added.
Make note of when the tens place changes.
Why does the tens place change?
When will the tens place change again?
*Try counting longs by programming your calculator to count by 10s. Why doesn't the ones place change?

23. Making and Comparing 3-digit numbers A variation of the Digit Game.
Each partner takes three number cards and creates the largest 3-digit number he or she can. The partner with the larger number takes all of the cards.
*Variation: Create the smallest number you can, and the partner with the smaller number takes all of the cards.
Note:
Use ten
for every
face card.

24. Ordering Numbers with Base-10 Blocks
Each child takes two index cards.
Draw a 2-digit number on each card using
and notation.
When your group finishes, work together to
order the cards by figuring out the number represented on each card.
TG 692