Mathematical operations can be performed not only on numbers, but on variables too. Let's add, for example, values of two variables:
let a = 1;
let b = 2;
alert(a + b); // shows 3
It is not necessary to display the result of the operation immediately, you can first write it to some variable, and only then display the value of this variable:
let a = 1;
let b = 2;
let c = a + b; // write the sum to the variable c
alert(c); // shows 3
Create the variable a
with the value
10
and variable b
with the value 2
. Display their sum,
difference, product, and quotient (division result).
Create the variable c
with the value
10
and variable d
with the value
5
. Sum them up and assign the result
to the variable result
. Display the
value of the variable result
.
Create the variable a
with the value
1
, variable b
with the value
2
and variable c
with the value
3
. Display their sum.
Create the variable a
with the value
10
and variable b
with the value
5
. Subtract from a
the variable
b
and assign the result to variable
c
.
After, create the variable d
, assign
the value 7
to it. Add the variables c
and d
, then write the result to the variable
result
. Display the value of the
variable result
.