Unit 5 - Lesson 13 - Grade 5: Illustrative Mathematics
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Grade 5 Unit 5
Lesson 13: Analyze Addition Mistakes
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 5
Lesson 13: Analyze Addition Mistakes
CC BY 2021 Illustrative Mathematics
Lesson: Analyze Addition Mistakes
1,987.89 + 658.54
Record an estimate that is:
1,987.89 + 658.54
Record an estimate that is:
Find the value of 621.45 + 72.3. Explain or show your reasoning.
Find the value of 621.45 + 72.3. Explain or show your reasoning.
Elena and Andre found the value of 621.45 + 72.3. Who do you agree with? Explain or show your reasoning.
Elena and Andre found the value of 621.45 + 72.3. Who do you agree with? Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Find the value of the expression. Explain or show your reasoning.
Cool Down: What is the Error?
The calculation has an error.
The calculation has an error.
Explain the error.
Find the correct value of 38.7 + 9.46.
Find the correct value of 38.7 + 9.46.