Use a little bit of logic to find out the rule that links "input" and "output" in these math puzzles.

Learners will use their number sense and logic skills to find the missing number in each of 18 sequences.

This second grade math practice worksheet is a double whammy. She'll solve each subtraction problem, and then determine whether the answers are odd or even.

This worksheet guides kids through simple word problems by presenting options for breaking up tens and ones.

Boost your second grader's math skills without boring him! Challenge him to solve seven subtraction problems, and then identify which answers are odd and even.

Compare your "input" number to the corresponding "output" number to find the pattern in each table and fill in the missing numbers.