Flow Of Electricity Week 2 day 2

I started working on the flow of electricty lab and I learnt that in a series circuit whatever the Amps are, the voltage will be the same number one decimal place to the right. For exmample, if the amps are 0.45 then the voltage will be 4.50. Likewise, if you have the amps at 0.90 then the voltage will be 9.0.  Howver, this doesn't nessasarly apply to a parrarell circuit. However, I did some resereach and concluded that V=I/R, which means voltage = current/resistance.