Every year the unit on place value, number sense, regrouping (for number sense, not computation) and rounding gives my kiddos such trouble.
I needed as many activities as possible to allow them to work with place value concepts. This more and less activity was a great way to accomplish this. It helped students think about how place values change and what happens to numbers when this occurs.
I like the idea of leaving the blanks before more and less so I can decide if I want everyone doing 100 more and 100 less, 10 more and 100 less, or if I want to individualize for each student.
If I don’t want to use the cards, I can fill in the number column before I run my copies.
Everything is included in color and black and white. I suggest printing the number cards onto cardstock and then laminating for durability.