| Subject | English | Spanish |
| math. | addition and subtraction facts | operaciones de suma y resta (Use operación when the emphasis is on the process) |
| math. | addition and subtraction facts | sumas y restas |
| math. | addition fact | operación de suma (Use operación when the emphasis is on the process) |
| math. | related addition and subtraction facts | operaciones relacionadas de suma (y resta) |