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Chapter 4: Lessons 6-7
Multiplication with Regrouping Using Place
Value Blocks
Solve.
1) 9 x 40
2) 7 x 50
How can we multiply greater
numbers?
In the real-world, we use
multiple strategies to rate and
compare quarterbacks by
multiplying with regrouping.
Multiply
1-digit whole numbers
by 2-digit whole numbers.
Use
base ten blocks to solve
multiplication problems.
①
②
③
Regroup- Uses place value to exchange
equal amounts when renaming a number.
Factor-A whole number that divides exactly
into another number. Also a number that is
multiplied by another number.
Product- The answer or result of a
multiplication problem.
You are the General Manager for the
Tennessee Titans football team. You
are looking at the draft for the 2015
season.
Your Challenge: Which
college quarterback should
you draft for your team?
To compare the players, you decide to look
closely at the statistics. You have the statistics of
two quarterbacks after their last 3 games.
Player
Bo Wallace
Justin Worley
College
University of
Mississippi
University of
Tennessee
Touchdowns
11
14
Completions
15
27
Let’s figure out how many points each player gets
for their touchdowns by using base ten blocks.
Player
Justin Worley
College
University of
Tennessee
Touchdowns
14
Completions
27
Touchdown
3 points
Completion
2 points
Let’s figure out how many points Justin Worley
received for his touchdowns by using base ten
blocks.
3 x 14
4 tens= 40
2 ones = 2
40 + 2 = 42
Let’s figure out how many points Justin Worley
received for his completions by using base ten
blocks.
27 x 2
5 tens= 50
50 + 4 = 54
4 ones = 4
Now we need to figure out the stats on Bo
Wallace. Use base ten blocks to find the number
of points Bo earned for his touchdowns and
completions.
Player
Bo Wallace
College
University of
Mississippi
Touchdowns
11
Completions
15
Touchdown
3 points
Completion
2 points
Player
Bo Wallace
Justin Worley
University of
Mississippi
University of
Tennessee
Touchdowns
11 x 3 = 33
14 x 3= 52
Completions
15 x 2 = 30
27 x 2 = 54
College
Station B:
Independent
Practice
Station C:
Fluency
Station D:
How can using the base ten blocks
help you solve multiplication
problems?
Draw base ten blocks to help
you solve 23 x 5.
Day 2:
Use the Distributive Property to Multiply with
Regrouping
4x5
4 x 10
4 x 50
4 x 49
How can we multiply greater
numbers?
In the real-world, we use
multiple strategies to rate and
compare quarterbacks by
multiplying with regrouping.
Multiply
1-digit whole numbers
by 2-digit whole numbers.
Use
the distributive property to
multiply greater numbers.
① Distributive
Property- To
multiply a sum by a number,
multiply each addend by the
number, and add the products.
Yesterday we looked at two quarterbacks to
determine which one we should draft.
Today we’re going to look at one more
possible draft pick, Marcus Mariota.
Your Challenge: According to
his stats, is Marcus a better
pick?
Let’s review yesterday’s stats!
Player
Bo Wallace
Justin Worley
Marcus
Mariota
University of
Mississippi
University of
Tennessee
University of
Oregon
Touchdowns
11 x 3 = 33
14 x 3= 52
17
Completions
15 x 2 = 30
27 x 2 = 54
24
College
Let’s figure out how many points Marcus received for
his touchdowns by using the distributive property.
Player
College
Marcus
Mariota
University of
Oregon
Touchdowns
17
Completions
24
Touchdown 3 points
Completion 2 points
3 x 17
10
3
30
+
7
21
(3 x 10) + (3 x 7)
30 + 21
51
Let’s figure out how many points Marcus received for his
completions by using the distributive property.
2 x 24
20
2
40
+
4
8
(2 x 20) + (2 x 4)
40 + 8
48
Player
Bo Wallace
Justin Worley
Marcus
Mariota
University of
Mississippi
University of
Tennessee
University of
Oregon
Touchdowns
11 x 3 = 33
14 x 3= 52
17 x 3= 51
Completions
15 x 2 = 30
27 x 2 = 54
24 x 2= 48
College
Station B:
Independent
Practice
Station C:
Fluency
Station D:
Which strategy do you like best in
solving greater multiplication
problems? Why?
Use the distributive
property to solve:
32 x 6