To start with: WHY MENTAL MATH and DRILLS? Because I have found, in teaching secondary students who never learned basic arithmetic at lower grades, that when they attempt to do most anything at the secondary level they are stymied by their lack of fundamental knowledge--that far precedes the grade they are presently in.
From a database of MORE THAN 42,900 problems and over 1250 skills, 38 skills (each with a minimum of 30 problems at all different skill levels) are presented here with 2 problems apiece. They are printed in Grade-Domain-Cluster-Standard-skill-difficulty level order and range from the elementary to challenging. Each is coded with its difficulty level (1= most elementary; 4= most difficult). Diagrams and/or instructions are oftentimes included when needed by problems. Problems can have extensive answer (and step-by-step solution) sheets (at the end) provided.
[The problems in All WORKSHEETS and PREVIEWS are printed in difficulty (1 [easy], 2 [not so easy], 3 [proficiency] up to 4 [mastery]) order within a skill. The actual difficulty level appears slightly to the left of the DK box of each problem in a very small font. Also, instructional references appear on worksheets but are optional on quizzes.]
COMMENTS, QUESTIONS, CRITICISMS and REQUESTS are REALLY, REALLY welcome.
You might also want to check out the Grade 3 MENTAL MATH problems
, the Grade 4 MENTAL MATH problems
, the Grade 5 MENTAL MATH problems
, the Grade 6 MENTAL MATH problems
and the Grade 7 MENTAL MATH problems
as well as the MENTAL MATH & Drills based on 1-12 tables
, PRIME FACTORIZATION Drills
and the MULTIPLICATION Drills (to replace flashcards)