Apply the associative property of addition to find the sum. See Example.125 + (75 + 41)Exa...

Apply the associative property of addition to find the sum. See Example.

125 + (75 + 41)

Example

Find the sum: 98 + (2 + 17)

Strategy We will use the associative property to group 2 with 98.

WHY It is helpful to regroup because 98 and 2 are a pair of numbers that are easily added.

Solution

We will write the steps of the solution in horizontal form.

Whenever we add 0 to a whole number, the number is unchanged. This property is called the addition property of 0.