Singapore Book Of Records
Fastest Mental Calculation

3 of our students currently holds 6 records in fastest Mental Calculation in Singapore book of Records, on 6 November 2022 and 15 January 2023 held at 3G Abacus Head Office.

Congratulations to them!

Students from left:

1) Nirvi Jain (9 year old)

Fastest Mental 3×1 Digit Multiplications in 5 Minutes, achieving 134 correct answers. (surpassing previous record of 128 correct answers)

2) Lucas Chan Yee Jie, (12 year 6 month)

Fastest Mental 4-by-1 Digit Division in 5 Minutes, achieving 102 correct answers. (surpassing previous record of 79 correct answers)

3) Ryan Khoo Jian Yang, (14 year 10mth)

Fastest Mental 6-by-4 Digit Division in 5 Minutes, achieving 48 correct answers. (New Record! Average of 6.35s per question)

Ryan has also achieved 3 other records in 2022:

i) Fastest 4-by-2 Digit Division in 5 Minutes, achieving 116 correct answers.

ii) Fastest 2×2 Digit Multiplications in 5 Minutes, achieving 104 correct answers.

iii) Fastest to Complete 50 Multiplications & 50 Division on Sporcle, in a time of 0min 57sec.

Check out more photos in the Gallery here.

Link to: Singapore Book of Record