DD4 is learning basic addition using the Kumon 1st Grade addition book. I wanted to try some other workbooks too for supplemental, and am looking at Singapore Math.

If y'all use Singapore Math, do you use the Math in Focus books? If so, which book would be the right level for her (just addition and subtraction/she hasn't grasped skip-counting, etc). Would Level A Year 1 be the one I need?

I know the Kitchen Table math series and Life of Fred are highly recommended, and I'm looking into them, but she's a wee bit workbook obsessed right now so I'm trying to stick with what motivates her.