Input-Output Tables for 4th Grade

This lesson covers input-output tables for fourth-grade math. Use the examples and practice below to build confidence and skill.

DETAILED EXPLANATION

An input-output table has a rule that turns each input into an output. If the rule is ‘add 5,’ then input 3 gives output 8. Find the rule by looking at how inputs and outputs relate.

WORKED EXAMPLES WITH STEP BY STEP SOLUTIONS

Example 1

In a table, input 2 gives output 6; input 4 gives output 12. What is the rule?

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Solutions:

Step 1: Apply the concept from the lesson above.

Step 2: Carry out the operation or reasoning.

Answer: Output = input × 3. The rule is multiply by 3.

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