Respuesta :

Answer:

4.23 + 16.21 = 20.44 = C

42.3 + 1.621 = 43.921 = B

4.23 - 1.621 = 2.609 = A

42.3 - 16.21 = 26.09 = D

Step-by-step explanation:

Answer:

you did bro

Step-by-step explanation: