Question

Q5. a) Divide 231 - 11.
​

Answer 1

Answer:

If you divide 231 by 11 and the quotient is a whole number without a remainder, then 231 is divisible by 11. To find out if 231 is divisible by 11 you could therefore simply enter 231 divided by 11 into your calculator to see if you get a remainder - however, we will show you a better method to determine if 231 is divisible by 11 without a calculator.

To find out if any number such as 231 is divisible by 11, you split 231 into individual digits and then alternate subtracting and adding the digits. If the absolute value of the result is divisible by 11, then 231 is divisible by 11. Here is the math:

2 - 3 + 1 = 0

|0| = 0

0 is divisible by 11, therefore the answer to "Is 231 divisible by 11?" is Yes.

Answer 2

Answer:

see the picture.............................