Shape up your addition skills with these square puzzles!

Search for numbers in a hundred chart with this helpful first-grade worksheet! 

Search for acorns, mugs, pumpkins, and mushrooms with this fall-themed addition worksheet for first graders!

Master the commutative property of addition with this inviting worksheet!

Practice rearranging addition equations with this colorful worksheet!

Learn to use the commutative property with three-addend addition expressions!

Learn to navigate a hundred chart with this first-grade worksheet!