Toán lớp 5 | Giải Toán lớp 5 (hay nhất, chi tiết) | Giải sgk Toán 5

5Learn about the mathematical, geometric, cultural, and natural snificance of the number 5. Discover how the number 5 relates to prime numbers, Fibonacci numbers, Platonic5 (five) is a number, numeral and dit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. Humans, and many other animals, have 5 dits on their limbs. See more