This math skill teaches how to approximate the multiplication of a number by Pi. Recognize that Pi is slightly over 3, use 3 as a base for a rough estimate, and adjust by considering more precise decimal places of Pi for better accuracy.
🎙️
What is 8 times pi, approximately
🎙️
Pi is an irrational number, and its decimals go on forever, but we can approximate by knowing that it's a bit more than 3
🎙️
So, 8 times 3 is 24. That's a decent first approximation, but Pi is a bit more than 3
🎙️
8, times the zero point 1 4 1 5 9 part would be approximately 1
🎙️
So a better approximation for 8 Pi would be around 25.
Toggle Auto Play (On)
Audio Voice (Mobius Voice)
Toggle Teaching (Video)
Approximating multiplication by Pi
Test your understanding of approximating multiplication by Pi by practicing it! Work through the below exercises to use it in practice.