Game 1+2=3 online

We invite you to play an entertaining mathematics. Our hero - an A student and prepared for you a bunch of examples in which the figure only three numbers: 1,2,3. The sum of all of the tasks shall not exceed the number of three, so the game is quite suitable for first-graders, which are known and more complicated examples. Show how fast you are able to add and subtract, try to score maximum points.