Adding Integers

Adding Integers
  • Currently 4.0/5 Stars.
4022 views, 4 ratings - 00:10:55
Part of video series Operations with Integers
Taught by YourMathGal
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Shows how to add postive and negative numbers; uses counters.

  • Alien Addition Game - Game from Math Game Time: Alien Addition is a fun math game which helps kids practice their addition skills. Invading spaceships with math problems move down from the top of the screen toward a laser cannon on a platform at the bottom. Hit the spacebar to shoot the correct answer!
  • 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?
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.
  • Currently 4.0/5 Stars.
Reviewed by MathVids Staff on October 10, 2009.
Very helpful! MathGal is amazing!!
  • Currently 5.0/5 Stars.
Reviewed by DebbeD on February 05, 2010.
The illustration of the example explains why and,I learn only when that question is answered. Thank You
  • Currently 5.0/5 Stars.
Reviewed by marosa85 on April 12, 2010.
 
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