Adding Integers

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
6390 views | 4 ratings
Part of video series
Meets NCTM Standards:
Lesson Description:

Shows how to add postive and negative numbers; uses counters.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • How do you add positive and negative numbers?
  • What does it mean to add positive and negative numbers?
  • What are the formal rules for adding positive and negative integers?
  • How do you add 3 + -5?
  • How would you add -3 + -4?
  • How do you know how to add positive and negative numbers?
  • How do you add -4 and -2 by drawing - signs?
  • How do you show 3 + 2 using a picture?
  • How do you add two numbers that have the same sign?
  • How do you add two numbers with different signs?
  • How do you add 3 and -6?
  • How do you add two numbers by drawing a picture if the negative number is larger than the positive number?
  • How could you add -7 + -10 without drawing a picture?
  • How do you know how to add -100 + -200 + -300 without a calculator?
  • How do you know whether an addition problem like -12 + 3 will be positive or negative?
  • Why do you subtract if you are adding two numbers with different signs?
  • How can you figure out what -22 + 10 equals?
  • What does 32 + -11 equal?
  • Where can I find a bunch of example problems of adding positive and negative numbers?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson introduces adding integers by using + signs and - signs. A lot examples are shown and explained. You will learn how to draw pictures for problems as well as the rules for adding integers with different signs.
  • DebbeD

    • Currently 5.0/5 Stars.
    Very helpful! MathGal is amazing!!
  • marosa85

    • Currently 5.0/5 Stars.
    The illustration of the example explains why and,I learn only when that question is answered. Thank You