Printable Input and Output Tables Worksheets

Printable input and output tables worksheets for 4th and 5th grade, with an answer key on every sheet. The sets below cover 3 different skills, so you can start where your child actually is. Available as ordering activities and sorting activities.

Targeted Practice by Skill

About Input and Output Tables

What this skill is

Input and output tables (function machines) apply a specific rule to input numbers in a table to calculate missing output values, or deduce the unknown rule.

When children learn it

Input-output tables are taught in 3rd through 5th grade, aligned to 4.OA.C.5.

Teaching Tips

  • Write the operation rule clearly at the top of the function table column.
  • Work row by row, applying the rule to each input number.

Common Mistakes

  • Applying the rule in reverse (subtracting instead of adding when moving from Input to Output).
  • Calculation errors in output column entries.