Question

$30 + 40$ + $8 + 7$
$70 + 15$
calculate the result of the above arithmetic expressions and fill it in the yellow circle.

Explanation:

Step1: Calculate tens sum

$30 + 40 = 70$

Step2: Calculate ones sum

$8 + 7 = 15$

Step3: Add the two results

$70 + 15 = 85$

Answer:

85