National Record 2020 –Â Fastest Mental Math Calculation
RADHIKA MAHESHWARI (Born August 21, 2005) Student of Trendz Abacus, Kota (Rajasthan) Performed Mental Math Calculation at Kota on May 26th 2019, Successfully Breaking Previous /Setting New National Records Thus Awarded With
With following Details
| Category
 |
Category Detail |  Final Score
(Correct Sums) |
Time Taken
 |
| ADDITION
|
3-Digit (4 Row) | 77 | 5 min |
| MULTIPLICATION
|
2-Digit x 2-Digit | 145 | 5 min |
| MULTIPLICATION
|
3-Digit x 1-Digit | 62 | 1 min |
| DIVISION
|
                4-Digit/2-Digit | 15 | 1 min |
| DIVISION
|
5-Digit/2-Digit | 5 | 1 min |
| MULTIPLICATION
|
3-Digit x 3-Digit | 55 | 5 min |
| MULTIPLICATION
|
6-Digit x 2-Digit | 9 | 1 min |
| MULTIPLICATION
|
3-Digit x 2-Digit | 91 | 5 min |
| MULTIPLICATION
|
 4-Digit x 2-Digit | 68 | 5 min |
| DIVISION
|
2-Digit/1-Digit | 669 | 5 min |
| DIVISION
|
 5-Digit/2-Digit | 20 |  5 min |
| SQUARE
|
              3-Digit | 12 | 1 min |
| MULTIPLICATION
|
6-Digit x 2-Digit | 35 | 5 min |
| MULTIPLICATION
|
5-Digit x 3-Digit | 29 | 5 min |
| MULTIPLICATION
|
5-Digit x 2-Digit | 49 | 5 min |
| ADDITION
|
 15-Digit (10 Row) | 1 | 1 min |
| ADDITION
|
10-Digit (4 Row) | 5 | 1 min |
| MULTIPLICATION
|
4-Digit x 2-Digit | 15 | 1 min |
| MULTIPLICATION
|
30-Digit x 1-Digit | 2 | 1 min |
| MULTIPLICATION
|
3-Digit x 2-Digit | 18 | 1 min |
| MULTIPLICATION
|
20-Digit x 1-Digit | 4 | 1 min |
| MULTIPLICATION
|
5-Digit x 2-Digit | 12 | 1 min |
| MULTIPLICATION
|
 4-Digit x 3-Digit | 9 | 1 min |
| MULTIPLICATION
|
25-Digit x 1-Digit | 2 | 1 min |
| MULTIPLICATION
|
5-Digit x 3-Digit
|
7 | 1 min |
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