Verbal - "Complete the Sum"

Example

6 + 7 = 8 + (?)

Answer 5

All the questions can be answered from left to right; there are no other mathematical issues to consider when answering these questions.

Working from left to right: 6 + 7 = 13 So the right hand side of the sum “8 + (?) must also equal 13.

What number do you need to add to 8 to get 13? 8 + (5) = 13 So the correct answer option is “C”, 5.

Question Variance

There is no variance within these questions; depending your arithmetic skills you should be aiming for 100% accuracy with these questions.