Adding one is fun because the answer is always the next higher number. My printable addition flash cards for 1’s have the 1 as the first and second addend.
CCSS K.OA.1-2, K.OA.4-5
Please go to this page to see all the addition flash cards in this set.
![addition flash cards - 1s - sums to 10 - black and white](https://www.awellspringofworksheets.com/wp-content/uploads/2016/03/addition-flash-cards-1s-sums-to-10-black-and-white_premium-231x300.jpg)
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