The distributive law of multiplication over addition | Pre-Algebra | Khan Academy - By Khan Academy
| 00:0 |
DESCRIPTION:
Watch this video from Khan Academy on the distributive property. The instructor walks you through a problem featuring the distributive property and uses models to illustrate what you are doing when you apply the distributive property. How does your knowledge of common factors and multiples help you with the distributive property?
OVERVIEW:
The distributive law of multiplication over addition | Pre-Algebra | Khan Academy is a free educational video by Khan Academy.It helps students in grades 3 practice the following standards 3.OA.B.5.
This page not only allows students and teachers view The distributive law of multiplication over addition | Pre-Algebra | Khan Academy but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
1. 3.OA.B.5 : Apply properties of operations as strategies to multiply and divide. Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known. (Commutative property of multiplication.) 3 × 5 × 2 can be found by 3 × 5 = 15 then 15 × 2 = 30, or by 5 × 2 = 10 then 3 × 10 = 30. (Associative property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive property.) (Students need not use formal terms for these properties.).
