Is your calculator WRONG? It could be! Looking at the issue of implied multiplication and how it can affect your calculations. Why do some Casio and TI calculators give a different result to others? And why do they differ from your phone calculator, google calculator, or Wolfram Alpha? How Order of Operations matters.
TI explains the differences in models and why: https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11773