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OAS 3.A.1.2 Worksheets

OAS 3.A.1.2 (Oklahoma, 3rd Grade): "Describe the rule (limited to a single operation) for a pattern from an input/output table or function machine involving addition, subtraction, or multiplication." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.

Algebraic Reasoning & Algebra (A) 3.A.1 Describe and create representations of numerical and geometric patterns. 3.A.1.2Describe the rule (limited to a single operation) for a pattern from an input/output table or function machine involving addition, subtraction, or multiplication.

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3.A.1.2

OAS 3.A.1.2 Worksheets - Creating Patterns worksheet

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Creating Patterns

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Create your own number pattern by adding or subtracting the same amount each time.
Use the rule to figure out a missing number later in the pattern.
Explain the pattern rule in words or as a simple math sentence (like “add 3 each time”).

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OAS 3.A.1.2 Worksheets - Adding & Subtracting below 50 (Multiple Choice) worksheet

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Adding & Subtracting below 50 (Multiple Choice)

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Figure out what number is being added or subtracted by looking at an input and its output.
Use addition and subtraction facts within 50 to check which rule makes the outputs match.
Choose the correct rule from a few options by testing it on the numbers shown.

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OAS 3.A.1.2 Worksheets - Adding & Subtracting below 50 worksheet

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Adding & Subtracting below 50

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Figure out what a function machine is doing by looking at the input and output numbers.
Use addition and subtraction to find the rule that changes one number into another.

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OAS 3.A.1.2 Worksheets - Determining Function Machine Rule (+ or -) (MC) worksheet

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Determining Function Machine Rule (+ or -) (MC)

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Figure out what number is being added or subtracted to turn each input into the output.
Use a few input-output examples to spot a consistent pattern and name the rule.
Check that the same rule works for every pair in the table before choosing an answer.
Tell the difference between an “add” rule and a “subtract” rule by comparing inputs and outputs.

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OAS 3.A.1.2 Worksheets - Finding Same Pattern Rule worksheet

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Finding Same Pattern Rule

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Figure out the rule in a number pattern by looking at how the numbers change.
Compare two patterns and decide if they follow the same rule.

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OAS 3.A.1.2 Worksheets - Determining Function Machine Rule (+ - x) worksheet

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Determining Function Machine Rule (+ - x)

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Find the rule that turns each input number into its output number
Test whether a rule uses adding, subtracting, or multiplying
Check a rule by applying it to all the numbers in the table
Recognize patterns between pairs of numbers

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