Respuesta :

Answer:

45.52

Step-by-step explanation:

38.42 + 7 is 45.42, and 45.42 + 0.1 is 45.52

Answer:

Let's look at the whole numbers first and put aside the decimals;

38 and 7, let's add these two: 38 + 7 = 45

Now let's look at the decimals;

0.42 and 0.10, let's add these two:

  0 . 4 2

  0 . 1  0

+ _______

   0. 52 → Next, we add the decimals and the whole numbers:

45 + 0.52

= 45.52, 45.52 is your answer.