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Mathematics 8 Online
bird2800:

Rewrite 4 − 5 using the additive inverse and display the new expression on a number line. 4 + 5 A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 4. Another blue arrow begins at 4 and ends at 9. 4 − (−5) A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 4. Another blue arrow begins at 4 and ends at 9. 5 − 4 A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 5. A red arrow begins at 5 and ends at 1. 4 + (−5) A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and goes to 4. A red arrow begins at 4 and goes to negative 1.

Vocaloid:

hint: using additive inverse: A - B = A + (-B) so 4 - 5 = ?

bird2800:

6

Vocaloid:

follow the pattern

bird2800:

i dont get it

Vocaloid:

A - B = A + (-B) follow the pattern. if we replace "A" with "4" and "B" with "5" what do we get?

bird2800:

negitive 6

Vocaloid:

how are you getting -6???

bird2800:

5 minus 4

bird2800:

oh lol 1

Vocaloid:

4 - 5 is NOT the same as 5 - 4

Vocaloid:

|dw:1503083459314:dw|

bird2800:

negitive 1

bird2800:

i dont know

Vocaloid:

follow the pattern

Vocaloid:

|dw:1503083568124:dw|

bird2800:

im sorry i dont get it can i get the anwser pls

Vocaloid:

|dw:1503083637799:dw|

Vocaloid:

fill in the blanks. I have drawn arrows to show you what goes into the blank

bird2800:

ok

bird2800:

2

Vocaloid:

look at the arrows. what is supposed to go into the blanks?

bird2800:

oh int the blanks is 4 and 5

Vocaloid:

|dw:1503083762603:dw|

Vocaloid:

good, 4 and 5

Vocaloid:

so your answer is 4 + (-5)

bird2800:

ok

bird2800:

thx i was about to give up but you help a lot

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