Bojan Bogdanovic scored 19 first-half points to help Croatia remain unbeaten at EuroBasket 2017.
Croatia made it three wins from three on Monday with a 76-72 win over Montenegro in Romania.
Bogdanovic was again in good form for the Croatians ending with 23 points, but accurate 3-point shooting from Saric, Bender, Ukic, and Tomas also helped the cause.
Croatia led at the first quarter by 8 points before leading at halftime 43-31 thanks mainly to Bogdanovic who nailed four 3-pointers in four minutes.
Croatia held their lead throughout the third quarter to lead by 10 points going into the final 10 minutes of the game, and despite some fight from Montenegro who came within 1 point of the Croatians, they held on to claim the win in a close finish.
Croatia, who beat Hungary and Romania in their opening two matches of the tournament on Friday, now play Spain and the Czech Republic next in group play.