Videos to help Grade 5 students learn how to use basic facts to approximate decimal quotients with two-digit divisors, reasoning about the placement of the decimal point.

Common Core Standards: 5.NBT.2, 5.NBT.7

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Lesson Plans and Worksheets for Grade 5

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Common Core For Grade 5

New York State Common Core Math Module 2, Grade 5, Lesson 25

Lesson 25 Concept Development

Problem 1

39.1 ÷ 17

3.91 ÷ 17

Problem 2:

63.6 ÷ 73

6.36 ÷ 73

Problem 3:

11.72 ÷ 42

Lesson 25 Problem Set

1. Estimate the quotients.

a. 3.24 ÷ 82

b. 361.2 ÷ 61

c. 7.15 ÷ 31

d. 85.2 ÷ 31

2. Estimate the quotient in (a). Use your estimated quotient to estimate (b) and (c).

a. 7.16 ÷ 36

b. 716 ÷ 36

c. 71.6 ÷ 36

Lesson 25 Homework

4. Carter drank 15.75 gallons of water in 4 weeks. He drank the same amount of water each day.

a. Estimate how many gallons he drank in one day.

b. Estimate how many gallons he drank in one week.

c. About how many days altogether will it take him to drink 20 gallons?

Lesson 25 Homework

Finding Approximate Quotients with Decimals

This video shows how to estimate decimal values. Problems are solved demonstrating multiple strategies.

1. Estimate the quotients.

a. 3.53 ÷ 51

b. 24.2 ÷ 42

Lesson 25 Homework

1. Estimate the quotients.

a. 3.53 ÷ 51

b. 24.2 ÷ 42

c. 9.13 ÷ 23

4. Carter drank 15.75 gallons of water in 4 weeks. He drank the same amount of water each day.

a. Estimate how many gallons he drank in one day.

b. Estimate how many gallons he drank in one week.

c. About how many days altogether will it take him to drink 20 gallons?

3. Mrs. Huynh bought a bag of 3 dozen toy animals as party favors for her son’s birthday party for $28.97. Estimate the price of each toy animal.

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