Unit 4, Lesson 10# Writing and Expanding Multiplication Expressions

EngageNY 45 min(s)

Students identify parts of an expression using mathematical terms for multiplication. When we want to show multiplication of two numbers like 5 and 7, we typically write 5 × 7, using the "×" to show the operation. When we start to use variables with multiplication, we can use other forms. Why might we want to use a form other than the × when variables are involved?