Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
My 7 year old son LOVES Math and not reading so much. In these stories there are well placed challenging math problems. It keeps him interested in the story And he is super happy when he figures them out! Will buy the series, so far, we only have this book.