Unit 5 - Lesson 12 - Grade 5: Illustrative Mathematics

Last updated 11 months ago

12 questions

Note from the author:

Grade 5 Unit 5
Lesson 12: Estimate and Add
CC BY 2021 Illustrative Mathematics

Instructions

Grade 5 Unit 5
Lesson 12: Estimate and Add
CC BY 2021 Illustrative Mathematics

Lesson: Estimate and Add

Cool Down: Sums of Decimals

Library

Unit 5 - Lesson 12 - Grade 5: Illustrative Mathematics

Last updated 11 months ago

12 questions

Note from the author:

Grade 5 Unit 5
Lesson 12: Estimate and Add
CC BY 2021 Illustrative Mathematics

Instructions

Grade 5 Unit 5
Lesson 12: Estimate and Add
CC BY 2021 Illustrative Mathematics

Lesson: Estimate and Add

Number Talk: 99 Hundredths (Warm Up)

Find the value of each expression mentally.

Question 1

Question 2

Question 3

Question 4

Use the Standard Algorithm to Add Decimals

Question 5

Find the value of 5.61 + 2.53. Explain or show your reasoning.

Question 6

Han used the standard algorithm to add decimals. This is Han’s work. Describe what Han did in each step.

Question 7

Use the standard algorithm to find the value of 6.62 + 3.74.

Estimate and Find the Value

Question 8

Which whole number is the sum 2.82 + 5.2 closest to? Explain or show your reasoning.

Question 9

What is the value of 2.82 + 5.2? Explain or show your reasoning. Use the standard algorithm if it is helpful.

Question 10

10.

Which whole number is the sum 6.8 + 4.97 closest to? Explain or show your reasoning.

Question 11

11.

What is the value of 6.8 + 4.97? Explain or show your reasoning. Use the standard algorithm if it is helpful.