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Unit 6 - Lesson 14 - Grade 3: Illustrative Mathematics
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Lesson: What Makes Sense in the Problem?
Cool Down: A Show at the Carnival
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Grade 3 Unit 6
Lesson 14: What Makes Sense in the Problem?
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 6
Lesson 14: What Makes Sense in the Problem?
CC BY 2021 Illustrative Mathematics®
Number Talk: Give and Take (Warm Up)
Find the value of each expression mentally.
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Question 1
1.
306 + 199
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Question 2
2.
318 + 297
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Question 3
3.
275 + 325
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Carnival Time Number Choice
Here are three problems about time at the carnival. They are missing some information.
In the blanks, write numbers or times that make sense for the situation in the problem.
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Question 5
5.
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1
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Lemonade Break
A lemonade stand at the fair makes 132 liters of lemonade a day. When Clare and Tyler stopped by the stand, there were 90 liters left.
At the end of the day, there were 56 liters of lemonade left, which the vendor put on sale in 4-liter jugs.
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Question 12
12.
Use the information about the lemonade stand to write a question that could be answered with the
mathematical work shown.
132 - 90 = 42
Question:
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Question 13
13.
Question 14
14.
A show at the carnival starts at 2:45 p.m. and lasts 47 minutes. What time does the show
end? Explain or show your reasoning.
visibility
View drawing
Question 15
15.
Another show that is 24 minutes long ends at 5:10 p.m. Kiran says that the show starts
before 4:40 p.m. Do you agree? Explain or show your reasoning.
visibility
View drawing
Question 4
4.
275 + 329
Clare waited for Tyler to ride the Ferris wheel. Tyler left at_______and got back at_______.
Question 6
6.
When Tyler got back, he and Clare got in line to ride the roller coaster. They waited_______minutes. At_______, they got on the ride.
Question 7
7.
Clare and Tyler got to the carnival at_______. After_______minutes, they took a break to buy lemonade.
Question 8
8.
Share the numbers and times you chose with your group and explain why they make sense.
Work with your group to solve each problem. Be prepared to explain your reasoning.
Question 9
9.
How long did Clare wait for Tyler? Explain your reasoning.
Question 10
10.
What time did they get in line? Explain your reasoning.
Question 11
11.
What time did they take their lemonade break? Explain your reasoning.
Use the information about the lemonade stand to write a question that could be answered with the
mathematical work shown.
Question: