2+3=?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

`2+3 =5`

Explanation: The set of Natural numbers `NN` is a subset of the Integer numbers `ZZ`. The natural numbers begins with number `0` and each following number is incremented by one. Thus we have the numbers in sequence

`0`

`0+1 =1`

`1+1 =2`

`2+1 =3`

`3+1 =4`

`4+1 =5`

and so on.

from the above definition relation we can write (because addition is associate in the set of natural numbers):

`2+3 =2+(2+1) =2+(1+1)+1 = (2+1)+1+1 =(3+1)+1 =4+1 =5`

Therefore the answer to given addition is `2+3 =5` .

Approved by eNotes Editorial Team
An illustration of the letter 'A' in a speech bubbles

You are finding the sum of 2 and 3.

Since we are adding 2 positive numbers, we find the sum of their absolute values and use the common sign.

The absolute value of 2 is 2.

The absolute value of 3 is 3.

The sum of the absolute values with the common sign is 5.

Therefore, 2 + 3 = 5.

The sum is 5.

Approved by eNotes Editorial Team