'Number of Digits Quiz' is a training app designed to help you read large numbers smoothly. By getting accustomed to numbers with varying digits, you can improve your ability to read numbers instantly. It's perfect for anyone looking to strengthen their skills with numbers, whether in math, accounting, or administrative tasks! You need more practice. Please install this app. Please go to settings and set number of questions , unit , format and mute. Sound is affected by system settings.