Find the Sums (Under 100)

All of these sums are under 100: learners practice with three types of addition problems, each with two equations. First, they add a double-digit and single-digit number. Then, scholars add two double-digit numbers, one being a multiple of 10. Finally, they add two double-digit numbers. This would work well as a whole-class projection, because the following two pages explain each type of addition with visual detail, making it easy for you to review and guide your students' work.