Question

the mathematical expression 12+3 is equal to: please answer​

Answer 1

Answer:

We will get the value of 12+3=15.

Step-by-step explanation:

• As per the question we have to evaluate the given data.

            Given data:- 12+3.

           To find:-Value of 12+3.

            Solution:-

• Adding two or more numbers together is known as an addition.

• Addition as denoted by(+).

• Properties of addition are as follows,

1. Identity property of zero.
2. Inverse property.
3. Commutative property.
4. Associative property.

         $12+3\\=15$

Answer 2

15.

Step-by-step explanation:

Definition of Mathematical Expression :

• When we combine numbers and variables using operations such as addition, subtraction, multiplication, division, exponentiation and other operations, the resulting combination of numbers and variables using  mathematical symbols is called a mathematical expression.
• Given Expression is 12+3
• Here The mathematical operation which is used to find the value is "Addition".
• Addition : Usually signified by the plus(+) symbol. Addition is one of the four basic operations of arithmetic. The process of taking two or more numbers which is at least two numbers and adding them together is called Addition. The addition of two whole numbers results in the total amount or sum of those values combined.
• Therefore the value of  sum of 12 and 3 is 15.