Place Value, Addition, and Subtraction Kit, Numbers through the thousands This Kit Includes: An illustrated lesson plan to present children/students with concepts and materials on place value, addition, and subtraction; activities; an answer key, and the following items to print and laminate: addition sign; subtraction sign; 2 equals signs; and 2 sets of number cards (units through thousands).You will need the following items to present the lesson: 4 sets of bead bars (1-9); 1 golden ten bar; a