Either way is fine. They are equal, and it doesn't matter
which way you write it.
Multiplication is a "commutative" operation. That means
it doesn't make any difference which direction you work it out.
Examples:
. . . 2 · 3 and 3 · 2 produce the same answer
. . . 5 · 10 and 10 · 5 produce the same answer
. . . 3 · 7 and 7 · 3 produce the same answer .
In fact, if A and B are ANY two numbers, then
A · B and B · A always produce the same answer. For ANY numbers.
