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Multiply Whole Number and Decimals




 


Videos to help Grade 5 students reason about the product of a whole number and a decimal with hundredths using place value understanding and estimation.

Common Core Standards: 5.NBT.7, 5.OA.1, 5.OA.2, 5.NBT.1

Related Topics:
Lesson Plans and Worksheets for Grade 5

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 5

Common Core For Grade 5

New York State Common Core Math Module 2, Grade 5, Lesson 12

Lesson 12 Concept Development
Problems 1 - 3
2.31 × 22 =
2.31 × 221 =
2.31 × 201=
Lesson 12 Problem Set

1. Estimate, and then solve using the standard algorithm. You may draw an area model if it helps you.
a. 1.21 × 14 ≈ ____ × ____ = _____




2. Estimate, and then solve using the standard algorithm. Use a separate sheet to draw the area model if it helps you.
b. 1.3 × 26
c. 0.23 × 14
e. 7.06 × 28
Homework:
3. Eric walks 2.75 miles to and from work every day for an entire year. How many miles did he walk?
5. Gerry spends $1.25 each day on lunch at school. On Fridays she buys an extra snack for $0.55. How much money will she spend in two weeks?
Lesson 12 Homework
1. Estimate, and then solve using the standard algorithm. You may draw an area model if it helps you.
a. 24 × 2.31 ________ × _______ = _________
3. Eric walks 2.75 miles to and from work every day for an entire year. How many miles did he walk?


 

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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