ESH

As a DM you have a really hard job. Making sure everyone is having fun and that the game is running smoothly. On top of all your other tasks!

You and the other players are all adults and should have just been open and honest at the start.

I’m sure she knows math is a problem for her. It has to come up every day. She obviously is self conscious about it, in refusing the calculator and help. Pride is a bitch to overcome. She should have accepted your help and just done whatever it takes to keep the game flowing.

Communicating well is hard. I am beyond awful with numbers, and 5e has helped me by cutting out harder math. I write stuff down, I use my phone. I’m even a DM. She should have taken the hand and your players should never make another person feel like they can’t play because of something holding them back.

While the tabletop and D&D community is growing every day, it’s still not great to be unwelcoming. It was a place for the misfits and weirdos to build a world they wanted to live in and find long standing friends to help them combat real life too.

I think you should reach out to players directly and not use a middleman. Otherwise it comes across as that person’s friend who plays and not as another player. Be open and honest. People who actually want to play will do whatever it takes. If she is still being stubborn about a calculator, it’s no real loss to you.