Grade 8 Math: Extend Sequence of Numbers
A: Row 7
Correct Response
 Correct terms of sequence (1, 3, 5, 7, 9, 11, 13) and
sum 49
Incorrect Responses
 Terms of sequence with no sum given
 Sum (49) without terms of sequence
 Terms of sequence with incorrect sum given (e.g., 39)
 Terms and sum for row 6 given (e.g., 1, 3, 5, 7, 9, 11
= 36)
 Other incorrect
B: Row 20
Correct Response
Incorrect Responses
C: Row n
Correct Responses
 n2 or n x n
 Equivalent in words (e.g., number of row times itself)
Incorrect Responses
 n x 2
 n x 20
 Other incorrect
