Question

a use number line and add the following
integers:
a) (-1)+(-2) + (- 3)
b) (-2) + 8+ (- 4)​

Answer 1

Answer:

−1+(−2)+(−3)

1 st we will add −1 and −2

(−1)+(−2)

−11,−10,−9,−8,−7,−6,−5,−4,−3,−2,−1 ,0 ,1 ,2 ,3 ,4, 5

−2 is smaller than −1.

So, we have to go −1 places right from −2, which means 1 place left from −2

Which is equal to number −3

Hence,(−1)+(−2)=−2

∴−1+(−2)+(−3)=−3+(−3)

Now, as both number are equal

So, we have to go −3 places right from −3, which means 3 place left from −3

Which is equal to number −6

Hence,−1+(−2)+(−3)=−1+(−3)=−6

B.

∴ (−2)+8+(−4)=6