Don't let your second grader's math practice go to waste! This double-digit subtraction exercise also challenges her to identify odd and even numbers.

Practice skip counting by numbers 2-9 in this hundreds chart worksheet!

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

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.