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.

Build a solid foundation for multiplication by helping your second grader practice recognizing number patterns.

Can your second grader track down the odd numbers, and write them on sections of the caterpillar's body?

Students review odd and even numbers by circling them, then counting up how many they find.

Is that a one-eyed Octopus with horns? Now, that's odd! See if your second grader can identify the odd numbers in this worksheet.

Students color in odd numbers to reveal a path to the gold at the end of the rainbow.

Let's get to the math lab and figure out these numbers. Your second grader will do counting, coloring and writing while learning about odd and even numbers.

In this Halloween maze, follow the even numbers out of this scary graveyard. But watch out -- there are odd numbers waiting to trip you up!