**SPEED MENTAL ADDITION ****- Fastest Addition of 100 one-digit numbers.**

(3 sequential sets of "Speed Mental Addition" must be correct.)

**Software Used: "**Memoriad**™ ****Speed Mental Addition **Software**"**

This is one of the categories of MEMORIAD™ for World Record Attempts.

- Memoriad
**™****Speed Mental Addition**Software generates 100 random non-zero one-digit numbers to be added. - In case of a wrong answer a new trial set starts.
- The competitors add these 100 one-digit numbers as fast as possible.
- 3 sequential sets of "Speed Mental Addition" must be correctly added. The average time of adding these three sequential sets gives the achieved time of the event. The standard deviation of the time of the answers must be within a value determined by the Memoriad™ Committee.