Question

38 + 47
30 + 40 + 8 + 7

Explanation:

Step1: Add tens place values

$30 + 40 = 70$

Step2: Add ones place values

$8 + 7 = 15$

Step3: Sum the two results

$70 + 15 = 85$

Answer:

70 (for the empty bubble), final sum is 85