It doesn't add up!

by Linda
(Buckley, Wa, Pierce)

I am knitting a baby sweater. Instructions say; Cast on 32 stitches. Knit 35 rows. I did that.

Now it says; Using the backward loop method, cast on 4 stitches at the beginning of the next 8 rows.
You now have 64 stitches. Knit 17 rows even.

Okay, my question is...How can I end up with 64 stitches if I started with 32 and only am adding 4 stitches at the beginning of the next 8 rows? If I add 4 + 32 that equals 36, not 64.

I have read it over and over and it just doesn't make sense to me.

HELP!
Thanks,
Linda

YOUR ANSWER