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Unit 8 - Lesson 10 - Grade 5: Illustrative Mathematics
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Lesson: Here Comes the Sum
Cool Down: Reflect on Fraction Addition
1
Grade 5 Unit 8
Lesson 10: Here Comes the Sum
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 8
Lesson 10: Here Comes the Sum
CC BY 2021 Illustrative Mathematics®
Number Talk: Adding Fractions (Warm Up)
Find the value of each expression mentally.
1
1
1
1
Greatest Sum
1
1
1
1
Smallest Sum
1
1
1
1
Question 13
13.
What is important to remember when adding fractions with unlike denominators?
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Use the directions to play Greatest Sum with a partner.
Spin the spinner.
Each player writes the number that was spun in an empty box for Round 1. Be sure your partner cannot see your numbers.
Once a number is written down, it cannot be changed.
Continue spinning and writing numbers in the empty boxes until all 4 boxes have been filled.
Find the sum.
The person with the greater sum wins the round.
After all 4 rounds, the player who won the most rounds wins the game.
If there is a tie, players add the sums from all 4 rounds and the highest total sum wins the game.
Round 1
Question 5
5.
Complete Steps 1-5.
The person with the greater sum wins the round.
visibility
View drawing
Round 2
Question 6
6.
Complete Steps 1-5.
The person with the greater sum wins the round.
visibility
View drawing
Round 3
Question 7
7.
Complete Steps 1-5.
The person with the greater sum wins the round.
visibility
View drawing
Round 4
Question 8
8.
Complete Steps 1-5.
The person with the greater sum wins the round.
visibility
View drawing
After all 4 rounds, the player who won the most rounds wins the game.
If there is a tie, players add the sums from all 4 rounds and the highest total sum wins the game.
Use the directions to play Smallest Sum with a partner.
Spin the spinner.
Each player writes the number that was spun in an empty box for Round 1. Be sure your partner cannot see your numbers.
Once a number is written down, it cannot be changed.
Continue spinning and writing numbers in the empty boxes until all 4 boxes have been filled.
Find the sum.
The person with the lesser sum wins the round.
After all 4 rounds, the player who won the most rounds wins the game.
If there is a tie, players add the sums from all 4 rounds and the lesser total sum wins the game.
Round 1
Question 9
9.
Complete Steps 1-5.
The person with the lesser sum wins the round.
visibility
View drawing
Round 2
Question 10
10.
Complete Steps 1-5.
The person with the lesser sum wins the round.
visibility
View drawing
Round 3
Question 11
11.
Complete Steps 1-5.
The person with the lesser sum wins the round.
visibility
View drawing
Round 4
Question 12
12.
Complete Steps 1-5.
The person with the lesser sum wins the round.
visibility
View drawing
After all 4 rounds, the player who won the most rounds wins the game.
If there is a tie, players add the sums from all 4 rounds and the lesser total sum wins the game.