I have revised this freebie again and included the answers as well as a poster that you can use for scaffolding in intervention or for consolidation in a Maths Centre. There is also a Resource List which will help to target skill deficits that you find.
I use this screener in conjunction with my Number Facts Screener (also available for free on TpT). The Number Facts Screener will indicate which students to screen next. This screener will tell you what other facts within that strategy are known or not known. I administer this screener one-on-one in my intervention session so I can target the skill deficits precisely. That way I get more value for my time as students can be in and out of intervention quickly.
The grid in this screener is useful for those students who like this type of layout. I find they can map the facts they know and they ones they don't know and identify links they couldn't see before. When you've finishing mapping the known facts (I don't mark the unknown facts with anything other than a dot), give them the screen to see the level of mastery for themselves.
I have had kids who look at this screener and start to see relationships between facts for themselves. This is so much better than me targeting skill deficits and teaching a strategy to start with. I go with what they can see for quicker progress. (A recent example was the adding 10, take 1 strategy for adding 9.)
Mostly games will provide all the consolidation you will need to see progress. For those few students who need more you may be interested in my Slam Dunk programs which target the concept development and consolidation phases of number fact mastery in more depth.