CCSS.MATH.CONTENT.1.OA.D.2 : First Grade Math Worksheets
About 1.OA.D.2
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ - 3, 6 + 6 = _.
Here is a collection of our common core aligned worksheets for core standard 1.OA.D.2.
A brief description of the worksheets is on each of the worksheet widgets. Click on the images to view, download, or print them. All worksheets are free for individual and non-commercial use.
Please visit 1.OA.D to view our large collection of printable worksheets. View the full list of topics for this grade and subject categorized by common core standards or in a traditional way.
Write the numbers from the box to make each scale balance.
Core Standard: 1.OA.D.2
Write the missing numbers to complete each subtraction or addition sentence.
Core Standard: 1.OA.D.2
Complete each addition or subtraction sentence by filling in the missing numbers.
Core Standard: 1.OA.D.2
Write + or - sign in the blanks to make each number sentence true.
Core Standard: 1.OA.D.2
Use ten frames to practice subtraction.
Core Standard: 1.OA.D.2
Use related addition fact to find each difference.
Core Standard: 1.OA.D.2
Balance the scales by writing the correct numbers in the boxes.
Core Standard: 1.OA.D.2
Fill in the missing number to complete each addition sentence.
Core Standard: 1.OA.D.2
Use the addition and subtraction relationship to find the missing number in each addition sentence.
Core Standard: 1.OA.D.2
Use the addition and subtraction relationship to complete each addition sentence.
Core Standard: 1.OA.D.2
Use addition double facts to find each difference.
Core Standard: 1.OA.D.2
Write the correct operation ( + or – ) to make each addition/subtraction sentence true.
Core Standard: 1.OA.D.2
Use skip counting to identify and extend number patterns.
Core Standard: 1.OA.D.2
Identify the number pattern. Then write the missing numbers.
Core Standard: 1.OA.D.2
Skip count by 5's to fill in the missing numbers.
Core Standard: 1.OA.D.2
