Final answer:
In this question, the student has to match numbers to expressions that involve addition and subtraction.
Step-by-step explanation:
The student is given a set of numbers and has to match each number to the expression on the left that has the same value. Since the instructions mention adding the top arrows or subtracting the bottom ones, it is clear that the expression involves addition and subtraction. The student should match the number 45 with the dashed arrow on the right.