Teach students the basics of addends, missing addends, and using the unknown addend to solve subtraction with this set of practice sheets! The practice sheets build in difficulty and give you a quick and easy framework for teaching addends. The pack starts by familiarizing students with the vocabulary and the position of addends in a number sentence, moves on to practice writing addends, then to finding missing addends and finally, using missing addends to solve subtraction problems (Common Co