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1st Grade Missing Numbers & True Or False Equations Worksheets

1st Grade Missing Numbers & True or False Equations: find the missing addend and decide whether equations with an equal sign are true. Every worksheet is free, prints as a PDF with an answer key, and can be assigned online. The ones teachers open most are first.

← All 1st grade topics 1.OA.7 1.OA.8

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1st Grade Missing Numbers & True Or False Equations Worksheets - Addition & Subtraction (Fill in the Blank) worksheet

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Addition & Subtraction (Fill in the Blank)

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Student objectives

Find the missing number that makes an addition or subtraction equation true.
Use what you know about addition and subtraction to figure out an unknown part of a number sentence.
Check that both sides of the equation are equal after you fill in the blank.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Find Missing Fact worksheet

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Find Missing Fact

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Student objectives

Find the missing fact in addition and subtraction fact families.
Use a fact family to see how addition and subtraction facts are related.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Solving Mixed Problems within 20 (+ -) worksheet

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Solving Mixed Problems within 20 (+ -)

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Student objectives

Practice finding a missing number in addition and subtraction equations
Get comfortable seeing the unknown in different spots — at the beginning, middle, or end of an equation

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1st Grade Missing Numbers & True Or False Equations Worksheets - Finding Missing Addend (Within 10) worksheet

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Finding Missing Addend (Within 10)

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Student objectives

Find the missing number that makes an addition sentence true.
Use the total (sum) to figure out what addend is missing.
Practice quick addition facts with sums less than 10.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Understanding Equals (True or False) worksheet

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Understanding Equals (True or False)

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Student objectives

Understand that the equals sign means both sides have the same value.
Decide whether an equation is true or false by comparing the left side and the right side.
Solve simple addition or subtraction expressions to check if two sides match.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Finding Missing Addend Drills worksheet

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Finding Missing Addend Drills

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Student objectives

Find the missing number that makes an addition sentence true.
Use what you know about addition facts to solve for an unknown addend quickly.
Read and solve equations with a blank or box in different positions.
Build speed and accuracy with mental math when one part of the sum is missing.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Identifying True and False Equations (within 20) worksheet

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Identifying True and False Equations (within 20)

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Student objectives

Decide whether an addition or subtraction equation is true or false.
Solve simple addition and subtraction facts within 20 to check an equation.
Understand that the equals sign means both sides of an equation have the same value.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Adding To a Specic Value worksheet

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Adding To a Specic Value

Student objectives

Find the missing number that makes an addition sentence equal a target number.
Read and solve horizontal addition equations with a blank or missing addend.
Check your answer by adding the two numbers to see if they match the target.

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1st Grade Missing Numbers & True Or False Equations Worksheets - Creating Equations worksheet

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Creating Equations

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Student objectives

Decide whether to use + or − to make a number sentence true.

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More 1st grade topics

Addition & Subtraction Facts Within 20 46 Adding Within 100 7 Telling Time 4 Halves & Fourths 1 Addition & Subtraction Word Problems 7 Place Value: Tens & Ones 4 Ten More, Ten Less & Subtracting Tens 6 Properties & Fact Families 4 Comparing Two-Digit Numbers 3 Counting to 120 3 Shapes 1 Measuring Length 2 Charts & Data 2

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