‹
🧮
Counting
· Formula🧮 Formula Reference Sheet
Skip counting: 2,4,6,8 (by 2s) Reverse: 10,9,8,7,6 (countdown) Groups: 5×3 = 5+5+5 Missing: 3 + ? = 7 → ? = 4
⚡ Example per formula
Skip counting: 2,4,6,8 (by 2s)
↳5, 10, 15, 20 (skip by 5)
Reverse: 10,9,8,7,6 (countdown)
↳10, 9, 8, 7, 6, 5 (countdown)
Groups: 5×3 = 5+5+5
↳4 × 3 = 4 + 4 + 4 = 12
Missing: 3 + ? = 7 → ? = 4
↳5 + ? = 12 → ? = 7
✏️
Practice Exercises →
5 graded problems · AI checks each step