January math center with snowmen, polar bears, snowflakes, sweaters, mittens and more.Math worksheets with both addition and subtraction story problems for Pre-K, Kindergarten and First Grade. The students will read the problem, use the number line to work, draw a picture of the story and then write out the equation. The students will then fill in a tens frame for the equation. Each topic has several levels of difficulty for differentiation within your class or for continued practice once you mo