Reflection: Connection to Prior Knowledge Using the Inverse Operation for Addition and Subtraction - Section 4: Closure


I find that my students have a hard time finding missing numbers.  This activity gave me a chance to show them that if they have 2 numbers, they can do something with those 2 numbers.  Overall, I feel that most of the students know to take the numbers they have and use the inverse operation to find the missing number.  We will continue to practice the skill in our "daily review."

  Inverse Operation
  Connection to Prior Knowledge: Inverse Operation
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Using the Inverse Operation for Addition and Subtraction

Unit 11: Adding and Subtracting Whole Numbers
Lesson 7 of 11

Objective: SWBAT use inverse operations to find the missing numbers in addition and subtraction problems.

Big Idea: Inverse operations can help you find missing numbers.

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Math, Number Sense and Operations, subtraction, adding, Operations
  50 minutes
using inverse operation
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