contestada

Illustrate the Associative Property of Addition by finding the missing number in 7.5 + (4.8 + 9.9) = (theres a box here for the answer) + 9.9. a. 14.7 b. 11.3 c. 12.3 d. 17.4

Respuesta :

7.5 + (4.8 + 9.9) =  BLANK  + 9.9

Since 9.9 is on both sides of the  = sign, add the two other numbers.

7.5 + 4.8 = 12.3

The answer is C.