Determine the Unknown Whole Number in an Addition or Subtraction Equation Relating Three Whole Numbers Introduction

True or False. The missing number in this equation is 4.

Find the missing number.

Type in the missing number to make the equation true.

What one number can be doubled to make this equation true?

Which missing numbers are less than 7 and which are greater than 7?

Which of the equations below have 5 as their missing number? Select ALL that apply.

Which equation matches this word problem?

Select the model that shows the equation below.

Dennis says that the missing number from all three equations below is the same. Do you agree with Dennis? Explain.

Are the two equations below both part of the same fact family? Explain. Type in your answer.