Mental-math-Abacus-Champs-Academy.jpg

Abacus Champs Academy, New Delhi conducted a mental math session for its students at Limca Book of Records office on June 18, 2015 and at its own campus on June 21, 2015 during which the following records were created. The students were trained by chief mentor Davinder Singh and head teacher Ravinder Kaur. The calculation events were monitored by Anant Kasibhatla of My Memory Zone.

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Name Exercise Digits Rows Sums Time
Dhruv Kumar (b Feb 3, 2000) Addition/subtraction 7-d nos - 10 2:23 min (by listening only)
Yatharth Khanna (b August 11, 2003) Addition 2 d - 210 1 sec on Flash Anzan (total)
Tushar Singh (b April 2, 2003) Addition/subtraction 3 d 100 r - 2:13 min (by listening only)
Priyanka Ohri (b Dec 26, 1998) Addition/subtraction 4 d 50 r 1 4:43 min
Divya Kaushik (b Feb 20, 1999) multiplication (Written) 100 d - 19 min 51 sec