Singapore's Discovering Math 7A & B are only the first half of pre-algebra and that the remaining pre-algebra concepts are taught in 8 A & B. Therefore, if your student completed Singapore 7a and 7b, take Shormann Prealgebra Self-Paced eCourse.
If you think your student is ready for Shormann Algebra 1 now, see this article: My student failed or did not finish Pre-Algebra
Scope & Sequence for Pre-Algebra is on page 21 of Teachers Guide will show you the list of topics covered.
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