Answer:
The first answer to your question is, ? = 231
The second answer to your question is, ? = 266
The third answer to your question is, ? = 57 + 57 + 57
Step-by-step explanation: ( It is simple to me so not really much of a big explanation )
How to solve first answer:
187 + 44 = 231.
If the first number in the subtraction problem is not shown then you add the sum and the number minusing the first number.
How to solve second answer:
108 + 158 = 266
If the first number in the subtraction problem is not shown then you add the sum and the number minusing the first number. ( Or just like above ;) )
How to solve third answer:
171 / 3 = 57.
Since there are three answers missing in the addition problem then we will divide it by the amount of the answers missing which is, 3.
Thus the answer to your problem is, 231, 266, 57 + 57 + 57