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If you add up the two digits and they make either 3, 6, or 9

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Q: How you know which numbers are multiples of 3?
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Related questions

What are multiples of 3 up to 500?

if you know your threes just times it by numbers you know like, 6,8,20,50,90,120,140 and so on


How many numbers between 10 to 50 are multiples of 3 and 5?

There are three numbers between 10 and 50 which are divisible by both 3 and 5. All numbers that are multiples of 3 and 5 are the multiples of the lowest common multiples (lcm) of 3 and 5 which is 15. The multiples of 15 between 10 and 50 are {15, 30 and 45}, thus there are 3 numbers.


What percentage of numbers are multiples of 3 or 8 using numbers from 1-100?

33 multiples of 3 plus 12 multiples of 8 minus 4 multiples of both. 41%


What numbers have the factor of 3?

Multiples of 3.


How do you know that the numbers you find are common multiples?

If both of your numbers divide into them evenly with no remainder, they are common multiples.


What are four numbers less than 70 that are multiples of both 3 and 5?

To find numbers that are multiples of both 3 and 5, we need to find the numbers that are common multiples of both 3 and 5. These are numbers that are divisible by the least common multiple of 3 and 5, which is 15. The first four numbers less than 70 that are multiples of both 3 and 5 are 15, 30, 45, and 60.


How many two-digit counting numbers are either multiples of 2 or multiples of 3?

45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers


What are the numbers divisible by 3 and 4?

Multiples of 12.


Are all numbers that are multiples of 9 are multiples of 3?

This question is true


What are multiples of 3 and 5?

Since both 3 and 5 are prime numbers, only numbers that are multiples of its product are the numbers that are divisible by both. 15 is the LCM of 3 and 5 and hence all multiples of 15 are divisible by both 3 and 5


How many two digit counting numbers are either multiples of 2 or multiples of 3?

60 numbers


What are numbers that are between 55 and 101 with the multiples of 3 10 and 15?

To find numbers between 55 and 101 that are multiples of 3, 10, and 15, we need to find the numbers that are common multiples of these numbers within the given range. The common multiples of 3, 10, and 15 are numbers that are divisible by the least common multiple (LCM) of these numbers, which is 30. Therefore, the numbers between 55 and 101 that are multiples of 3, 10, and 15 are 60, 90, and any other multiples of 30 within that range.