Maria was learning to add numbers. She liked add numbers. It was easy to add numbers. could add one and one. She knew that and one are two. She knew that two two are four. She knew that three and are six. But that was it. She didn't what four and four are. She asked her . Her mom told her that four and four eight. "Oh, now I know," Maria said. "I four years old now. In four more years, will be eight." Maria was a fast learner. wasn't a slow learner.