Combining Opposite Quantities to Get Zero

All numbers on the left (<) of 0 are negative and all numbers to the right (>) of 0 are positive.

What is the sum of the card values? *sum means to add*

Use the counting on method on the provided number line to justify your answer.

5 minus 5 = 0

0 minus 4 = -4

negative 4 + 8 = 4

Remember to be recording these answers in your Module 2 Mat book

What is the final position on the number line?

The Absolute Value of 7 is 7 units to the right of zero.

How far is -7 (or the opposite of 7) from 0 (zero) and in which direction?

All black cards (on top) are positive and all the red cards (at the bottom) are negative

Think back to our previous work, explain how you would use the counting on method to represent the following: While playing the Integer Game, the first card is 7, and second card selected is -7.

This is simply asking: If you have 7 and negative 7 where does the dot land?

Look at the curved arrows you drew for 7 and -7. What relationship exists between these two arrows that would support your claim about the sum of 7 & -7? (answer on the next slide & in your book)

We will play a game much like this when we meet on Thursday or Friday. The goal will be to get your cards to equal zero.

If red cards are negative and black cards are positive

Then what would these cards equal? *answer on the next slide*

If red cards are negative and black cards are positive

Then what would these cards equal? *answer on the next slide*

If red cards are negative and black cards are positive

Then what would these cards equal? *answer on the next slide*