## Adding & Subtracting Ten(s)–1st Grade Skill or Intervention?

There are certain skills that if not learned early in math will be a detriment throughout a student’s entire math career. Learning to add ten or subtract ten is one of these skills. In later elementary grades, if the simplistic skill of adding and subtracting ten is not learned students will struggle with other math concepts.

For these reasons, I believe that is why this product is one of the best sellers in my shop. The skill of adding or subtracting ten is visually taught through patterns on the hundreds chart. I have newly revised this product to include answer keys, new borders, and new fonts. If you are looking for a product to teach your students to add or subtract ten— a skill they will need for their entire school career, look no further.

A Discovering Patterns worksheet with the hundreds chart and Mental Math Fluency Check are included in this packet for each of the following:

*Adding 10 to a One-Digit Number

*Adding 10 to Multiples of 10

*Subtracting 10 from Multiples of 10

*Adding 10 within 100

*Subtracting 10 within 100

*Adding Multiples of 10 within 100

*Subtracting Multiples of 10 within 100

Answer keys are also included.