Unit 4, Lesson 16-- Patterns in Addition

Lesson 16-- Patterns in Addition

Introduction

Hello Mathematicians! Today we will begin thinking about adding whole numbers. 

Take a look at this addition facts chart.  What patterns do you notice?  Jot down your thoughts in your math notebook.

addition facts chart

Video

 

 

Interactive

Part 1 Directions:

Part 2 Directions:

  • Use your knowledge of addition patterns to answer the following problems.

    • Mark said that if you add 1,345 + 8,423 your answer will be an even number. Is he correct? Explain your thoughts.

    • Jenny said that if you add 2,228 + 2,437 you would get an odd number. Is she correct? Explain your thoughts.

    • Rose said that if you add 9,134 + 10,148 you will get an even answer. Is she correct? Explain your thoughts.

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