This is a two page document that offers 60 addition and 60 subtraction problems. They can be used for timed assessment, practice pages, or homework. The addition covers sums 10-20 with single digit addends (and 10+10). The related subtraction facts have differences of 10 or less by subtracting a single digit (and 10) from numbers 11-20. This is the second part to a similar FREE product in my TPT store. I use this when students have mastered sums to 10 and related subtraction facts.