Divisibility by 9 Workout
This workout has 6 problems.
You need to complete 90% of the questions correctly in 120 seconds.
Directions: Select each number that is divisible by 9.
Divisibility rule for 9
A number is divisible by 9 if it’s digits add to a number that is evenly divided by 9 (no remainder).
Example 1: Is 171 divisible by 9?
Answer: Yes! The sum of the digits 1+7+1=9, 9 is divisible by 9, so 171 is divisible by 9.
Example 2: Is 567 divisible by 9?
Answer: Yes! The sum of the digits 5+6+7=18, 18 is divisible by 9, so 567 is divisible by 9.
Example 3: Is 239 divisible by 9?
Answer: No! The sum of the digits 2+3+9=14, 14 is NOT divisible by 9, so 239 NOT is divisible by 9.
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