1324 +

No time limit.

Start central number is 1,tap Red square.

Then number will plus 1-10.

Red Square=1,Green Square=2,Blue Square=3,Aqua Square=4,

Tap them to make them plus equal to the plus part.

When right number will plus 1-10,when not then this round is over.

Number's color will change to the last square you tap.

If still confused you can press the T to watch tutorial.

Thanks for you support and wish you have a good time.