Sum numbers game, It has simple rules adding until reduced to 1 digit in 20 seconds. Don't forget to connect to the internet to keep your World record!.
For example, the number 123456789 total of 1 +2 +3 +4 +5 +6 +7 +8 +9 was 45 and then took 4 +5 = 9 The answer is 9. Technical calculations. You can find the total number to nine, then dropped it.
For example 1 +8 = 9 2 +7 = 9 3 +6 = 9 4 +5 = 9
Number remaining is 9, the answer is 9
** Encourage you to think positive **
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