1. Tap on the Addition Choice Board to the left. Click on view original. 2. Tap on Matholia to view the video. 3. Play Marble Math Addition game - tap to start. 4. to practice counting on and show me what you know. 5. Use the on the number line and to write your answers. 6. Tap the to send me your completed work. Australian Curriculum Achievement Standard - Students carry out simple additions and subtractions using counting strategies.