Read the following prompt and type your response in the space provided.
Identify which property of addition could be used to solve the following problem. Solve the problem and justify how using the property makes the problem easier to solve.
7.6 + 3.9 + 2.4
The property of addition that could be used to solve the problem 7.6 + 3.9 + 2.4 is the Associative Property. According to this property, the grouping of addends can be changed without affecting the sum. Therefore, we can group the numbers in a way that makes the problem easier to solve.
We can group 7.6 and 2.4 together first:
7.6 + 2.4 = 10
Then, we add the sum of the grouped numbers (10) to 3.9:
10 + 3.9 = 13.9
Using the Associative Property of addition makes the problem easier to solve because it allows us to rearrange the addends in a way that simplifies the calculations.