Unit 4 - Lesson 7 - Grade 5: Illustrative Mathematics
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Last updated about 1 year ago
17 questions
Note from the author:
Lesson: Build Multiplication Fluency
Cool Down: Calculating a Product
1
Grade 5 Unit 4
Lesson 7: Build Multiplication Fluency
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 4
Lesson 7: Build Multiplication Fluency
CC BY 2021 Illustrative Mathematics®
Notice and Wonder: Same Solution (Warm Up)
1
Question 1
1.
What do you notice?
1
Question 2
2.
What do you wonder?
Greatest Product
Directions:
Partner A chooses a number card and writes the number in one of the blanks for Round 1.
Partner B does the same.
Repeat until each partner has a two-digit by three-digit multiplication problem.
Find the product.
The partner with the greater product wins a point.
The partner with the most points after 5 rounds wins the game.
Round 1
1
Question 3
3.
Partner A
1
Question 4
4.
Partner B
The partner with the greater product wins a point.
Round 2
1
Question 5
5.
Partner A
1
Question 6
6.
Partner B
The partner with the greater product wins a point.
Round 3
1
Question 7
7.
Partner A
1
Question 8
8.
Partner B
The partner with the greater product wins a point.
Round 4
1
Question 9
9.
Partner A
1
Question 10
10.
Partner B
The partner with the greater product wins a point.
Round 5
1
Question 11
11.
Partner A
1
Question 12
12.
Partner B
The partner with the greater product wins a point.
Desperately Seeking 9 New Units (Optional)
Tyler notices that when he uses the standard algorithm and composes a new unit, sometimes there is 1 new unit, sometimes 2, all the way up to 8. He has not seen an example with 9 of the new unit.
For each of these products, how many of each new unit do you compose?
1
Question 13
13.
1
Question 14
14.
1
1
Question 17
17.
Use the standard algorithm to find the product 372 x 83.
Question 15
15.
Question 16
16.
Do you think it is possible to compose 9 of a new unit with the standard multiplication algorithm?