RAPID ADDITION & SUBTRACTION OF SINGLE DIGIT NUMBERS BY A CHILD

The record for performing a rapid addition & subtraction of single digit calculation i.e., up to 250 numbers was set by Daksh Sachin Baid (born on August 17, 2011) of Surat, Gujarat. He can perform quick addition and subtraction up to 250 numbers flashing on the screen with a speed of 0.4 seconds, as confirmed on August 18, 2020.