##### Across

**2.**- What is four plus two?**4.**- What is one plus one?**5.**- What is ten plus three?**8.**- What is ten minus one?**10.**- What is nine plus nine?**11.**- What is five plus two?**12.**- What is ten plus five?**13.**- What is seven plus three?**14.**- What is ten plus ten?**15.**- What is ten minus two?**16.**- What is twenty minus nine?**17.**- What do you get when you add zero to one?

##### Down

**1.**- What is seven plus nine?**3.**- What is two plus two?**5.**- What is six plus six?**6.**- What is twenty minus one?**7.**- What is four plus one?**9.**- What is twenty minus three?**12.**- What is twenty minus six?**13.**- What is two plus one?