Learn quick mental math tricks in this 13-minute video that demonstrates efficient methods for multiplying numbers by 7.5 and 12.5. Master speed arithmetic techniques particularly useful when working with numbers divisible by 4, while understanding the practical limitations and applications of these mathematical shortcuts based on your mental calculation abilities.
Overview
Syllabus
Finally, a Trick to Multiply by 7 and a Half!
Taught by
Wrath of Math
