6
2+4=6 24/4=6
add numbers below to each number at the top
Yes it is... If you add the digits of ANY number together - and the result can be divided exactly by 3 or 9 - then the original number will also divide by 3 or 9. Since the digits of this number add together to make 18 - then 32643 will also divide by 3 or 9.
0.0001 because if you add zeroes to the decimal to make them have the same number of digits you will add zeros to 0.0001 to make it have the same number of digits and you get 0.000100 and it is greater than 0.000008
Nope... to check if a number will divide by 3 - add the digits of the number together. In this case, 6+7+7=20, which will not divide exactly by three.
Add the digits of the number. If that total is divisible by nine, so is the original number. Example: 12,345,678 The digits total 36. 36 is divisible by 9. So is 12,345,678.
9
18
No it is not. To check - add all the digits together (in this case 2+6+9=17. If the sum of the digits can be divided exactly by 3, then the number itself will also divide by 3. In this case, 17 (the sum of the digits) does not divide exactly by 3.
Nope. To work out if a number is a multiple of three - add all the digits in the number together. If the answer will divide by 3, then so will the original number. In this case, 5+8+0 = 13 - which doesn't divide by 3.
753/3 = 251. As an easy check for divisibility by 3, add the digits of the number. If the sum is 3 or a multiple of 3, then 3 will divide into the number.
Well - it's an even number - so it is definitely divisible by 2. If you add the digits together, you get the number 9, so it will divide by 3,6 & 9.
If the digits of the number you're dividing by 3 add up to a multiple of 3, the whole number is divisible by 3 and there will be no remainder. If they don't add up to a multiple of 3, there will be a remainder.