First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.

Concepts

missing numbers, equations with missing numbers, subtraction missing numbers, addends

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Additional Tags

math

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Instructional Ideas

• Supply class members with manipulatives in order to find the missing numbers
• Use the task as a formal or informal assessment such as an exit ticket 
• Replace the boxes with letters in order to introduce variables

Classroom Considerations

• Supply paper for learners to write their answers
• Ensure class members are familiar with equations that are written horizontally

Pros

• The teacher version comes with the solutions to the equations
• Allows for several ways for solving

Cons

• None

Common Core

1.OA.D.8