Moves C index to 2 on the D scale

Moves indicating line to 2 on the C scale

Reads 4 on the D scale

Good thing 2+2 and 2*2 yield the same answer. Would have to bust out the addiator otherwise

Maybe you can't

You could probably do log_10(10²×10²) instead?

ln(2) + ln(2) = ln(4)