Arithmetic and pre-algebra Factors and multiples Divisibility tests Divisibility Tests for 2, 3, 4, 5, 6, 9, 10 Recognizing Divisibility The Why of the 3 Divisibility Rule The Why of the 9 Divisibility Rule Divisibility tests Divisibility tests Use divisibility tests to check if large numbers are divisible by 2, 3, 4, 5, 9, or 10.
