Question

use assosiative property to prove ( 72 + 49 ) +28​

Answer 1

Answer:

Step-by-step explanation:

In associative property we associate two numbers which are easy to add and which will give say, 100, 1000 etc

So here we write

(72 + 49) + 28

=(72 + 28) + 49

=100 + 49

=149

Answer 2

Answer:

149

Step-by-step explanation:

(72+49)+28=72+(49+28)

LHS= (72+49)+28       RHS= 72+(49+28)

      = 121+28                       = 72+77

      = 149                             = 149

                    LHS=RHS

                   Hence proved

hope it helps

and ur welcm

:D