Question

Which of the following is true

a. 3.4 + 7.6 = 7.6 + 4.3
b. 3.14 + 0 = 0
c.(4.5 +c9.7) + 6.5 = 4.5 + (9.7 + 6.5
d. (1.1 + 10.9) - 7.5 = (10.9 - 1.1) + 7.5

Answer 1

D. Because A. doesn’t make sense B. Would equal 3.14 and C. The variable is not there

Answer 2

the one that is true is c because addition is the only one other than multiplication that the numbers can be switched and still equal the same answer