Press Start to practice all 36 mixed addition facts.
Correct: 0Incorrect: 0Unanswered: 0Total round time: 0.0s
Mixed addition practice: 36 shuffled facts (1+1 through 3+12). Answer using the keypad or keyboard. Correct answers automatically advance; the keypad hides near the end of each video so students can see the strategy. Complete all 36 cards to see your total time, then choose Practice My Hardest 5 for 50 shuffled repetitions. Starting a new full round selects a new hardest five. Target: all 36 correct in under 1 minute 30 seconds. No introductory lesson.