Add/Sub/Mult/Div

Each worksheet has 12 questions finding the missing value from a function machine.

Student Objectives

Figure out the missing input or output number when a machine adds, subtracts, multiplies, or divides by a rule.
Use the given input-output pairs to identify the operation and number being used in the rule.
Work backward through an operation to find an unknown value (like undoing +, −, ×, or ÷).
Check that a rule works for more than one pair in the table before filling in the blank.