Difference/Digit/Disjoint Sets
DIFFERENCE The number which results when one number is subtracted from another is called the difference. It is a missing addend in addition. Example: 7 - 4 = 3 the difference is 3
DIGIT Any one of the basic numerals, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, is a digit. The numeral 12 is a two-digit numeral and the numeral 354 is a three digit numeral.
DISJOINT SETS Sets that have no members in common are disjoint sets. Example: Set A = {a, b}, Set B {1, 2, 3}. Sets A and B are disjoint