Input-output table rules for adding and subtracting worksheets

What is on this worksheet

Look at the In and Out rows of a table and write the rule, which adds or subtracts a number.

• Rules: Add or subtract
• Find the: Rule

You can change any of these settings above. Press "New problems" for a fresh set with the same settings, or pick Version A to Z to print different sheets for neighboring desks. The answer key always matches.

About input-output tables and ratio tables

Each table has an In row and an Out row and follows one rule, such as adding 7, multiplying by 4, or multiplying by 3 and then subtracting 2. Choose whether students fill in the Out row, the In row, a mix of both, or write the rule. The In numbers go up in order, which makes it easy to see how the Out numbers change from one column to the next.

Switch to ratio tables to name the rows, for example boxes and pencils, and state the rule as "Each box has 4 pencils". Every column has the same ratio, which is the first step towards seeing a ratio as an input-output rule. Ratio tables always multiply.

Printing

US Letter or A4, portrait: choose your paper size above. Print at 100 percent (actual size). Use "Black and white" for the copier, or "Color" for display pages and mini books.