This One and Tens Place Value - Step-by-Step Lesson worksheet also includes:
Give your pupils a grasp of place value in a two-digit number. They see a drawing of counting cubes in a stick of ten, then examine a set of four. Mathematicians determine how many blocks there are by grouping the tens. Ideally, you will want to watch them do this or have them explain to be sure they aren't just counting individual blocks. The single problem is followed by a written and illustrated explanation for how to solve the problem. Project this as an all-class problem, covering the bottom half before you get scholar responses.