Elementary Test Prep: Math 4 Test (Grades 4)Model situations with objects and representations and be able to make observations

Using Objects to Solve Problems
Lesson
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A function table is a table of order pairs that follow a rule.

INPUT x 6 9 12 15

OUTPUT y 4 7

A rule tells how one number is related to another.
Rule: Subtract 2
x-2=y

6-2=4
9-2 =7

So, the next two numbers are 10 and 13.

How can you find a rule and complete the table?

You can use number patterns to complete a table.

The number pattern is the rule for the table.

You can use blocks to help you complete the table.
You always look for the pattern from the
INPUT to the OUTPUT.

INPUT	6	10	15	18	20	23
OUTPUT	10	14	19

What's the Rule?____________________

What do you have to do to each INPUT number to get the OUTPUT number below it?

6+4=10 10+4=14 15+4=19

You add 4 to each INPUT number to get the OUTPUT number.
The rule for this table is Add 4.
Use the rule to complete the table. Then write the rule.

INPUT	6	10	15	18	20	23
OUTPUT	10	14	19	22	24	27

Rule: Add 4

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Topic Index | Grade 4 Math | Elementary Test Prep | StudyZone