Help your child master early math basics. The lessons in this Grade 1-2 workbook focus on practicing addition and subtraction facts and adding and subtracting with two-digit numbers (tens and ones). A range of activities from a “Break the Code” exercise with companion riddle, to more standard equations, help lock in learning. Bold, colorful illustrations help make it fun. Concepts and skills are identified at the bottom of each page, and the slim workbook size is great for packing into totes, backpacks and luggage.