eg.ArithmeticColumnFixture

x

y

plus()

minus()

times()

divide()

200

300

500

-100

60000

0

400

20

420

380

8000

20

Note: Word has an autoformat feature that makes it a pain to keep the words lowercase. I had to keep going back and changing them. Should they be case-insensitive?

Might business users be tempted to type "60000" as "60,000"?