How many can you count?
★ 0Tap a number to hear it
The blue numbers are the tens — 10, 20, 30…
Which number is hiding in the middle?
★ 0?
Odd or even?
★ 0👯 Even numbers pair up perfectly — odd numbers always leave one out!
Put them in order
★ 0Which sign goes in the middle?
★ 0?
🐊 The crocodile mouth always opens toward the bigger number!
Split the number into its parts
★ 0Round it!
★ 0🎯 Halfway or more rounds up — less than halfway rounds down.
Secret Roman numbers
★ 0🏛️ Romans wrote numbers with letters: I = 1, V = 5, X = 10, L = 50, C = 100.