Decuria is the perfect time killer! It’s about “make 10” puzzle game. Rules are very simple: 1)Merge little numbers till you get 10. 2)Merge identical numbers greater than 10 to get the bigger numbers. Easy, right? But watch carefully! Coins and Bonuses are here! The number with a little star is a COIN. Collect coins and use them to get bonuses. 4 various bonuses will help you to reach for the sky! How far can you get? Accept this Make 10 Challenge!