Question

Find the sum of 301+73+27, mentally, using the Associative Property of addition. Show how you can use the property to group two of the addends. Explain how you found the sum.

Answer 1

The answer is 401, because you can put parenthesis between 73 and 27. The equation would now be 301+(73+27). You do the expression inside the parentheses first. Now it will be 301+(100) which is the same as 301+100. You know 301 plus 100, which is 401. There's your answer. I hope this helped.