There are three different ways to write numbers:

Standard Form- 32,102

Word Form- Thirty-two thousand, one hundred two

Expanded Form- 30,000+2,000+100+00+2 (you do not need to include the zero, but I like to use it as a place holder)

If I asked "What is the value of the underlined digit?"

4,__6__78 The value of the underlined digit is 600

If I asked "What is the value of change?"

45,567 to 48,567 = INCREASED by 3,000

Aim and shoot the target after giving a correct answer(practice all 3 forms as well as value of digit) http://www.toonuniversity.com/flash.asp?err=503&engine=15

Place Value Game(easy,but good practice) http://www.funbrain.com/tens/index.html

Place Value Game(easy, but good practice)http://www.toonuniversity.com/flash.asp?err=496&engine=9