How to find the sum using addition property?

**1.** The sum of two numbers does not change if the order of the numbers is changed. This property is expressed by the following examples of addition.

(i) 5 + 7 = 12

7 + 5 = 12

The sum of 5 and 7 is the same as the sum of 7 and 5, i.e., 12

(ii) 64 + 19 = 83

19 + 64 = 83

The sum of 64 and 19 = 83 and also the sum of 19 and 64 = 83

(iii) 235 + 126 = 361

126 + 235 = 361

The sum of 235 + 126 = 361 and also the sum of 126 + 235 = 361

**2.** The sum of
three numbers does not change even when their grouping is changed. This
property is expressed by the following examples.

(i) If we have to add 5, 7 and 9 we can group and find the sum as follow:

(5 + 7) + 9 = 12 + 9 = 21

(7 + 9) + 5 = 16 + 5 = 21

We see (5 + 7) + 9 = (7 + 9) + 5 = 21 = 5 + 7 + 9 = 21

(ii) We have to find the sum using addition property of 19 + 25 + 21

19 + 21 = 40 + 25 = 65

19 + 25 = 44 + 21 = 65

25 + 21 = 46 + 19 = 65

Thus, 19 + 25 + 21 = 65

i.e., (19 + 21) + 25 = (19 + 25) + 21 = (25 + 21) + 19 = 65 = 19 + 25 + 21

(iii) We have to find the sum of 125 + 265 + 112

125 + 265 = 390 + 112 = 502

265 + 112 = 377 + 125 = 502

125 + 112 = 237 + 265 = 502

Thus, 125 + 265 + 112 = 502

i.e., (125 + 265) + 112 = (265 + 112) + 125 = (125 + 112) + 265 = 502

Hence the grouping of numbers does not affect the addition sum.

**3.** To find the
sum using addition property of a number and zero is the number itself.

as 5 + 0 = 5

32 + 0 = 32

372 + 0 = 372

0 + 9 = 9

0 + 68 = 68

0 + 472 = 472

**From Find the Sum using Addition Property to HOME PAGE**

**Didn't find what you were looking for? Or want to know more information
about Math Only Math.
Use this Google Search to find what you need.**

## New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.