Lessons begin with an explanation of the concept and example problems that are solved step-by-step. A number of practice problems are provided on the following "Applications" pages.
Level 3 covers the single-digit subtraction concepts and basic facts, including the concept of subtraction, 36 subtraction facts with ones, reading & writing addition number sentences, and the concept of 0.
80 pages, softcover. Student workbook only; levels are not grade specific. Skills are early elementary. A diagnostic test is included.