This math topic provides practice on identifying number sequences that follow specific rules. The exercises involve finding number patterns with given characteristics, such as: 1. Continuous repeat of a sequence (e.g., 6, 4) 2. Arithmetic operations including addition and subtraction from a starting number (e.g., start at 13 and subtract 3) 3. Multiplicative sequences starting from a number and multiplying by a constant (e.g., start at 2 and multiply by 10) 4. Recognizing repeated number sequences based on clear repetition rules. Students are required to select the correct number sequence that matches the described rules from several options.