Ari

Ari is an application for practicing mental arithmetics written in React and Redux.

Getting Started

To start the app, run the following commands:

npm install
npm run server

The app can be viewed at http://localhost:8080.

Design

Operations

• ADD
  • 1: 1 digit + 1 digits
  • 2: 1 digit + 2 digits
  • 3: 2 digits + 2 digits
  • 4: 3 digits + 2 digits
• SUB
  • 1: 1 digits - 1 digit
  • 2: 2 digits - 1 digits
  • 3: 2 digits - 2 digits
  • 4: 3 digits - 3 digits
• MUL
  • 1: Mostly 1 digit * 1 digits (1 - 12)
  • 2: Mostly 1 digit * 2 digits
  • 3: 2 digits * 2 digits (11 - 19)
  • 4: 2 digits * 2 digits (15 - 99)
• DIV
  • This is reverse of MUL
• MIX

Presentation

• VER
• HOR
• AUD
• MIX

Options

• How many questions, default 20