This is a number of the day or "Star Number" worksheet. It can be used with any number. I usually use it with the number of the calendara number according to the calendar (either number of the month, total number of school day, or number of date).
There is a black and white and color version included.
Each sheet deals with place value (tens and ones), even or odd, one more/one less, ten more/ten less and has a place for students to create addition problems and subtraction problems that equal the star number.