Find the hidden rule in these puzzling math tables! Compare your "in" number to the corresponding "out" number to find the pattern in each table.

Adding and subtracting large numbers can sometimes be difficult. Estimating is an easy way to figure out if your answer is close, or if you need to try again.

Match word forms of multi-digit numbers with this interactive second- and third-grade worksheet! 

Learn all about the word forms of multi-digit numbers with this cut-and-paste worksheet, tailored for second through fourth graders!

Round two-digit numbers to the nearest 10 with this essential worksheet!

Sharpen second and third graders' number sense with this word form worksheet! 

Test your knowledge of number names with this inviting worksheet!

Master rounding to the tens place with this engaging worksheet!

Should you round that number up or round it down? Help your seafarer master the art of rounding with this fun fish color by number.

Practice rounding to the tens and hundreds places with this essential rounding worksheet!

Build number chains in this worksheet for third and fourth graders!

Get ready to round with this helpful second- and third-grade math worksheet! 

Become a number detective in this riddle-filled worksheet!

Get your ducks in a row and strengthen number sense in this adorable math worksheet!

Identify the names of numbers in the tens of thousands in this colorful worksheet!

Match words to visuals in this helpful base ten worksheet!