Ex 3 - Multiplying numbers using Line Intersection
1713 views
|
2
ratings
Part of video series
Meets NCTM Standards:
Lesson Description:
Math shortcut to Multiply numbers using Line Intersection
Try www.LazyMaths.com for hundreds of Speed Math shortcuts and Smart Math techniques.
Questions answered by this video:
- How do you multiply numbers using line intersections?
- What is the line intersection method of multiplication?
- Is there a quick and easy shortcut or trick for multiplying numbers by drawing diagonal lines?
- How can you find 123 * 234 quickly?
-
Staff Review
This video teaches you a very different and interesting way of multiplying numbers by drawing diagonal lines and counting up the intersection points. This method is kind of cool and fun, but the way the sums of intersections are written is a bit confusing.
