Respuesta :
Answer:
We can use the associative property of addition to group the numbers for addition.
Step-by-step explanation:
We are given the following information in the question:
We have to add [tex]4 + 2 + 5[/tex] in two different ways.
Associative property of addition
- The associative property states that you can add regardless of how the numbers are grouped.
- By grouped we mean how we use parenthesis.
- [tex](a+b)+c = a+(b+c)[/tex]
Working:
[tex]4 + 2 + 5[/tex]
[tex](4+2)+5 = 4+(2+5)\\6 + 5 = 4 + 7\\13 =13[/tex]