There are 24 cards where the students need to determine what is 10 more or 10 less than the number on the card. Recording sheet and answer key included.
There are also 3 worksheets with 6 problems on each. Each problem gives a number and the students will write what is 10 more or 10 less than the number.
I have also included a large 100's chart and a page that has 4 smaller 100's charts on it.
Can be used as a center or SCOOT.
Black and white version for easy printing.