The Russian letter В is tricky: it looks like the English letter B but sounds like V.
When at the end of a word, the letter В tends to sound like Ф.
Practice in syllables
Words with this letter
The О is unstressed and pronounced like А.
The В is followed by a voiceless consonants, therefore it's pronounced as Ф.
Practice with a worksheet
Practice the hand-written Russian letter В, as well as the syllables and words listed above, with this worksheet: download the worksheet.