I did a lesson very similar to this and the students LOVED it! Great around Halloween. I also had the students use estimation before actually weighing the pumpkins and also how many pieces of candy corn were in a jar.
Underline the digit Look next door 5 or higher add one more 4 or lower just ignore so flex your muscles like a hero, Digits to the right turn to zero! They're little and small so let'em fall. 9 They need to grow so let'em go!