Exercise $2$c

Complete the "Multiplication Table" with One Formula

An absolute cell reference, e$.$g$.$ $C$$7,$ is really fixing the column to C and the Row to $7.$ There are mixed references: $C$7$ fixing the column to C but letting the rows change as the reference is copied and C$$7$ fixing the row to $7$ but allowing the column to change as the reference is copied.

Come up with a single formula in B$5$ that you can copy to the remainder of the table, completing the Multiplication Table. Hint: it takes a "mixed" reference $-$ that is$,$ either the column or the row should be held constant and the other allowed to vary as it is copied.