What happens when…?

What happens when you multiply a number by a number less than 1? Consider all cases. (How do you know you have considered ALL cases?)

In general, what happens when you multiply a whole number by 0.05? In general, what happens when you multiply a whole number by 0.48?

In general, what happens when you multiply a whole number by 0.9?

(Reprinted with permission from Developing Number Sense in the Middle Grades, Addenda Series Grades 5-8, copyright 1991 by the National Council of Teachers of Mathematics. All rights reserved.)