🌱 Foundations · Ages 5–8 · beginners

Number Sense

The foundations of all mathematics. Discover why ten digits are enough to write any number, and learn the four operations with blocks, number lines, arrays and games.

📚 3 lessons 36 min 100 XP

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Lessons

1🧮Place value: the power of tenWhy ten digits are enough to write every number in the universe.⏱ 10 min✨ 30 XP
2➕Adding and subtractingHop along the number line and learn the trick of making ten.⏱ 12 min✨ 30 XP
3✖️Multiplying and dividingEqual groups, arrays, fair sharing and what to do with leftovers.⏱ 14 min✨ 40 XP