Integers

·      What are integers?? Here is a video that explains the difference between what an integer is and what it  is not.
     Integers

Questions for working with the video:

o   Of the  numbers that you know, which are integers ?

o   Is 0 an integer number?

o   Which numbers aren´t integers? Give some examples, at least three.

o   What is a mixed number? How do you write them? Give some examples.

o   What three kinds of numbers has the video talked about?Give  three examples of each one.

But there are also negative integers, like -2 or -5. We can use these numbers in some contexts, for instance, if the temperature is below 0, we say the temperature is -3ºC

·      Video about addition and subtraction of intergers with or without using the  number line. 

     Addition and subtraction of integers

  

     Questions for working with the video:

o   Where do we draw integers?

o   Where do we place negatives? And positives?

o   How do you read -7? And -3+5-4? Write the aswer.

o   Explain how to add and subtract integers using the number line.

o   What do you get when you add two positive numbers? And two negatives?  What if you have a posivite and a negative number?

 

·      Now watch this video about  subtracting   integers. You can see it and answer this question. 

  o   How many ways of subtracting numbers did the video show?. Could you explain them?

    Subtracting integer