1.2.2 Divisibility of Numbers
Unlock mental math shortcuts with the Countacy Divisibility Lab
📺 Watch & Learn
🏃 Activity 1: The Speed Sorter
Drag the number ?? into a correct "Divisibility Bin":
DIV BY 2
DIV BY 3
DIV BY 5
DIV BY 10
??
➕ Activity 2: The Digit Sum Challenge
Add the digits of 126. What is the sum?
🕵️ Activity 3: The Rule Breaker
Is 540 divisible by 10?
🏗️ Activity 4: The Number Architect
Create a 3-digit number divisible by 5 but NOT by 2:
⚡ Activity 5: Quick-Fire Rules
Rule for 2?
Ends in 0, 2, 4, 6, or 8
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