Addition within 20, Grade 1: Set 1

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About this item

A printable addition within 20 worksheet for grade 1. Twenty problems are spread over two clean pages with room to work, and a separate answer key page at the end so you can check the set in a minute. The answer key is on the last page, with one answer for every problem. Print it, hand it out, or use it as a quick daily warm-up. This is set 1 in a series of practice sets; each set uses fresh numbers.

• Worksheet
• Addition within 20
• Grade 1
• Math
• Printable