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Challenge your child to add three, four, and five numbers together. He may find the task daunting, but there's a trick to add multiple numbers that will help!

If your child is looking for a number challenge, we've got the worksheet for her. She may be a whiz at adding two numbers, but can she add three numbers?

Practice identifying doubles facts with this appealing worksheet!

Help first and second graders practice solving near-doubles facts using this fun worksheet!

Get more practice adding multiples of 10 on an open number line with this vibrant worksheet!