5+5+5+5+5

26

3^3

28

29

3x10

31

thirty-two

##
33

Edit: hopefully, most keyboards are set up this way o_o

Well, shift+2 varies quite a bit from region to region (I know some use " there), and I wouldn't be surprised if shift+3 was the pound symbol on some keyboards.

34

thirty-five

36
Ahg, I went and searched keyboards. And saw that shift 3 for one had a colon, another a No-number sign, and some keyboards with symbols I don't understand. Thankfully, most of them had a # on the 3. But honestly, other than a QWERTY keyboard, I don't know what people use -_-'

Thirty-seven

38

13*3

4(10)