She could read and write better than any of her brothers, but she had always been hopeless with sums. Even still, she'd come to him under the promise that sums would be done. Given time and patience, she could work through them. If she had to, she could consult someone else. But if sums were what Gendry wanted, then she would have to impress him with sums.

Somehow.

"For now, I am the one who is at your service. The rest of the household is...engaged. But I gave you my word you would have help."