Question 01 Properties of Integers Calculate: \( 345 + 123 + 155\) Show Solution \begin{equation*} \begin{split} 345 + 123 + 155 & = (345 + 155) + 123\\\\ & = 500 + 123\\\\ & = 623 \end{split} \end{equation*} Basic Concept (Prev Lesson) (Next Lesson) Question 02 Kembali ke Properties of Integers