How can you tell that 42 is divisible by 3?

Answer 1

To determine if 42 is divisible by 3, you can add up the digits of 42 (4 + 2 = 6) and check if the sum is divisible by 3. Since 6 is divisible by 3, then 42 is also divisible by 3. This is based on the rule that a number is divisible by 3 if the sum of its digits is divisible by 3.

Answer 2

Well, honey, you add up the digits of 42 (which gives you 4+2=6) and if that sum is divisible by 3, then the original number is also divisible by 3. In this case, 6 is divisible by 3, so yes, 42 is divisible by 3. Math can be fun when you know the tricks!

Answer 3

Oh, dude, it's like super simple. You just add up the digits of 42, which is 4 + 2 = 6. If that sum is divisible by 3, then the original number is also divisible by 3. In this case, 6 is divisible by 3, so yeah, 42 is divisible by 3. Easy peasy!

Answer 4

Its digits add up to a multiple of 3.

Answer 5

4+2 = 66 = 3*2 so 42 is divisible by 3.