Welcome to Mathnasium’s Math Tricks series. Students are often taught that division is the opposite of multiplication, and therefore should rely on their multiplication facts to divide; this can be difficult when the number to divide by (the divisor) extends beyond these facts. Today we are using number sense to divide, when the divisor is a power of two. The trick is to cut the original number (the dividend) in half the appropriate number of times (the “power” amount).
Mathnasium #MathTricks: Number Sense (Division Part 1)
By Mathnasium | May 25, 2022