Adding negative numbers (example) | Negative numbers and absolute value | Pre-Algebra | Khan Academy

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Use a number line to add -15 + (-46) + (-29)

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Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off!

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These videos are REALLY helpfull! Ignore the bastards that say otherwise.

EuSouSuperior
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Thank you, this helped me alot and dont listen to the other people who are hating just cause they didn't "understand"

god
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thank you khan helps me so much with my academics!

chrisroberts
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Adding and subtracting negative numbers can be difficult, so it's better to calculate them as a vertical line.

woohwison
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Thank you too much!You help me with math all the time!

ariefeldman
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OMG I DID NOT THINK OF THIS, HELPS A LOT!!!

Carlosmusic
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Thanks to my teacher gave me this video

donutboydoesstuff
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Wait a minute it is good explanation, but I can make it simple:
+/+ and -/- is addition
+/- is subtraction
+(-) is going to be a negative number,
+(+) or -(-) is a positive number so:
-15 +(-46) +(-29) turns into -15 - 46 - 29 =-90

heastner
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i just finished watching youtubers react to Fred, how could i focus on math?

kittyjames
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Adding will go into the positives and subtracting will go into negitaves. You did it wrong

tigi_
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they say this is non profit, yet w=they earn tons of mone from their youtube channel... anyway, really helpfull!

animalbusters
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how come you don't just add them all together and then put a negative sign in front? That's what I always do when adding negatives. It's a lot shorter.

Pugetwitch
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@SpoiledLogic Right on, but you's be surprised How many Cannot Comprehend an Absolute Value or who their Vice-president, or Senator or Rep are

Dremple
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MOM is here, tryna LEARN. Your hostility is distracting me. Kindly refrain. Thanks, hear?

jdquinitchette
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So Confusing... I can't imagine a child comprehending...

kaycee