Reasoning
453 problems in counting, pattern-finding and figure enumeration — the groundwork the curriculum skips and competition assumes.
By grade
Grade 2-1 45 problems
Grade 2-2 45 problems
Grade 3-1 46 problems
Grade 3-2 47 problems
Grade 4-1 45 problems
Grade 4-2 45 problems
Grade 5-1 45 problems
Grade 5-2 45 problems
Grade 6-1 45 problems
Grade 6-2 45 problems
By thinking domain
Invariant 75 problems
Pattern & rule 67 problems
Shape enumeration 64 problems
Logic 62 problems
Other 62 problems
Number arrangement 50 problems
Counting 47 problems
Optimization 26 problems