In math, we speak of equations or equalities
5 + 5 = 10
The equation, the statement that two expressions yield the same value, can be expressed in natural language in several ways, the first, drawing attention to the equality:
Five plus five is ten.
Five plus five equals ten.
the second, drawing attention to the operation of addition:
Five plus five makes ten.
Five plus five adds up to ten.
Five plus five gives ten.
P.S. We can also say
Five plus five make ten, or add up to ten, or give ten.
The decision to use a singular or plural verb hangs on whether the speaker has in mind two distinct elements ("five ... five", understanding plus to mean "and") or a single expression as the subject, i.e. a singular noun linked by the word plus with another noun, as in "five augmented-by five ...".
These are also valid and grammatical:
five and five makes ten
five and five make ten
five and five is ten
five and five are ten
depending on the speaker's attitude towards the subject, whether it is compound, consisting of two nouns conjoined, or a single expression.