Aberdeen went level on points with Rangers in second place after comprehensively beating St Johnstone.Ryan Christie opened the scoring for the Dons on 34 minutes, with Stevie May doubling the advantage before half-time.Greg Stewart struck either side of Matty Willock’s Saints consolation to put the result beyond doubt.Moussa Dembele converts from the spot as Celtic beat Ross County. SNSCeltic extended their lead at the top of the Premiership to twelve points after cruising to victory over Ross County. Paul Hanlon made it 2-0 five minutes later when he headed home Scott Allan’s cross, with Danny Devine sent off in the closing stages for Thistle.Stephen O’Donnell takes the acclaim after Kilmarnock go 2-0 up. SNSKilmarnock earned a fourth straight Premiership win by beating Hamilton 2-0 at Rugby Park.Steve Clarke’s side went ahead after just four minutes when Lee Erwin produced an eye-catching turn and slotted home.Stephen O’Donnell’s ball into the box was deflected into the net as Killie doubled their lead on the brink of half-time.Jamie Murphy scores against his former club to claim a point for Rangers. SNSRangers fought back from two goals down at the break to claim a point against Motherwell.Graeme Murty looked set to suffer a third straight defeat after Curtis Main scored from the spot and Allan Campbell struck in the opening 16 minutes.But the Light Blues responded after the interval, with James Tavernier netting a disputed penalty and Jamie Murphy scoring against his former side to ensure a hotly-contested match ended honours even. Moussa Dembele put Brendan Rodgers’ side ahead from the penalty spot before Staggies skipper Andrew Davies saw red for stamping on Scott Brown’s groin.Stuart Armstrong added a second after half-time, with Tom Rogic rounding off the win on the hour mark.Jamie Maclaren celebrated after netting the opener for Hibs. SNSHibs edged to within four points of second-place thanks to two late goals against Partick Thistle.Aussie forward Jamie Maclaren pounced on Martin Boyle’s cross to give Neil Lennon’s side the lead moments after the Jags had a goal ruled out at the other end.