Distributive Property Part 1 - pos numbers
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Lesson Summary:
In this lesson, you will learn about the distributive property of multiplication over addition for positive numbers. The instructor demonstrates how to use the distributive property to simplify expressions, remove parentheses, and solve real-world problems, such as calculating the total cost of buying multiple items. The lesson also includes practice problems for learners to try on their own.
Lesson Description:
Distributive property of multiplication over addition, part 1. No neg numbers or subtraction.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- What is the distributive property of multiplication over addition?
- Why does m*n = m(n) = (m)n = (m)(n) = mn?
- Why does a(b + c) = ab + ac?
- How can you simplify 3(4 + 5) using the distributive property?
- If you want to buy 13 pencils at 7 cents each, how could you find 7*13 using the distributive property to figure out how much they cost?
- How can you simplify 5(x + 8) using the distributive property?
- How do you write 4(m + 13) without parentheses using the distributive property?
- What does 6(2m + 7) simplify to without parentheses?
- How do you simplify 8(3m + 4)?
- How could you simplify 3(x + 8) + 14 using the distributive property?
- What does 5(2x + 5) + 9 simplify to?
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Staff Review
This lesson is a very basic introduction to the distributive property of multiplication over addition. Some example problems are done to illustrate how this property works. Only addition is included in these examples.
