This FREEBIE is a sample of Addition & Subtraction Practice Sheets, Speed Tests, Plus Doubles. It provides lots of adding and subtracting practice 1-12, and doubles facts that can only improve math fluency! Included are speed tests that can be timed in one of 3 increments: 1, 1 1/2, or 2 minutes. First graders can start using these from the very beginning of the year, all the way to the end as review! The practice sheets can be used in math centers, morning work, whole class, or homework... If you like this FREEBIE, please leave me feedback, and check out the full product in my store!