OML Search

Multiply Decimal Fractions & Whole Numbers




 

Videos to help Grade 5 students learn how to multiply decimal fractions by multi-digit whole numbers through conversion to a whole number problem and reasoning about the placement of the decimal.

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 11

Lesson 11 Concept Development

Problems 1 - 3
7.38 × 41
8.26 × 128
82.51 × 63
Lesson 11 Problem Set

1. Estimate the product. Solve using the standard algorithm. Use the thought bubbles to show your thinking. (Draw an area model on a separate sheet if it helps you.)

1.38 × 32 ≈ _____×_____= ______



1. Estimate the product. Solve using the standard algorithm. Use the thought bubbles to show your thinking. (Draw an area model on a separate sheet if it helps you.)

3.55 × 89 ≈ _____×_____=_______
2. Solve using the standard algorithm.
b. 147.83 × 67
3. Use the whole number product and place value reasoning to place the decimal point in the second product. Explain how you know.
c. If 46 × 1,239 = 56,994 then 46 × 123.9 = ______________
5. A living room measures 24 feet by 15 feet. An adjacent square dining room measures 13 feet on each side. If carpet costs $6.98 per square foot, what is the total cost of putting carpet in both rooms?

Lesson 11 Homework

This video demonstrates how to multiply decimal fractions in the hundredths place.

1. Estimate the product. Solve using the standard algorithm. Use the thought bubbles to show your thinking. (Draw an area model on a separate sheet if it helps you.)

a. 2.42 × 12 ≈______ × ______ = _______ b. 4.13 × 37 ≈ _______×______= _________



 
4. A slice of pizza costs $1.57. How much does 27 slices cost?

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.




OML Search


We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.


[?] Subscribe To This Site

XML RSS
follow us in feedly
Add to My Yahoo!
Add to My MSN
Subscribe with Bloglines