Use the commutative property and compatible numbers to calculate the sum. explain how you used mental math. 23. 3 + 36. 7

                                                       1  1
I think it might be 23.3 + 36.7 is 36.7
                                                      23.3 
                                                     
                                                      60 .0

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a