Give your students simple two-digit numbers to practice the decomposition addition strategy! This can be used as a stand-alone activity or in conjunction with the Composing and Decomposing lesson plan.
Learning how to check our work is essential to becoming strong math students! In this exercise, students will first solve the subtraction problems, then they'll practice checking their work by plugging the answers into an addition equation.
Word problems make for great assessment tools because they require a complete understanding of the math concepts. Use this assessment to evaluate your students' abilities to add and subtract three-digit numbers using mixed operation word problems.