This product contains 15 worksheets:Skip Counting (skip-count within 1,000 by 2s, 5s, 10s and 100s)Place Value (expanded, standard, and word form)Place Value Comparing Numbers2-Digit Addition 2-Digit Subtraction Add Four Numbers3-Digit Addition 3-Digit Subtraction 100 More, 100 LessAddition within 20 Subtraction within 20 Even or Odd?Telling TimeGuess the Shape! (identifying triangles, squares, rectangles, circles, pentagons, and hexagons)The resource is aligned with the Common Core Standards fo