However, I’m going to answer like Marcel would.
“I don’t buy such cheap things as that.”
As the eldest son of a Duke’s family, Marcel doesn’t have to do his own shopping in the first place, but he has been taught plenty about money’s value. He’s a total snob.
“……Then, if you’re buying one galt (currency) of rubies, and three galts of jasper, when combining the cost, how many galts will it be in total?”
“Ahh, that’s much more like what I would want. The answer is four galts.”
I replied while showing off my self-confidence. Marcel should at least get something of this extent correct. Even Marcel has reviewed and learned this much before.
“That’s correct. You must have applied yourself to studying recently. Then, next problem.”
She’s trying to confirm how much I know, she’s a good teacher.
“If you’re buying six galts of sapphires and nine galts of diamonds, how many galts would it cost? If you need to, feel free to use your hands to count.”
I counted up to six on my fingers, bent one to signify it and then counted another nine fingers.
“It’s five galts.”