How to write algebraic expressions from word problems | 6th grade | Khan Academy

Learn how to write expressions with variables to describe situations described in word problems.

Grade 6th on Khan Academy: By the 6th grade, you're becoming a sophisticated mathemagician. You'll be able to add, subtract, multiply, and divide any non-negative numbers (including decimals and fractions) that any grumpy ogre throws at you. Mind-blowing ideas like exponents (you saw these briefly in the 5th grade), ratios, percents, negative numbers, and variable expressions will start being in your comfort zone. Most importantly, the algebraic side of mathematics is a whole new kind of fun! And if that is not enough, we are going to continue with our understanding of ideas like the coordinate plane (from 5th grade) and area while beginning to derive meaning from data! (Content was selected for this grade level based on a typical curriculum in the United States.)

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy à ªs 6th grade channel:

[whorah]

ok but his voice is so smooth and relaxing like omg

[marielmagbuhat]

Thank heavens you posted this video! I thought my math quiz tomorrow was gonna be the END of my LIFE!!! Thanks again for posting this video! :33

[rex_animations]

Great vid! Only a little confused on the last 2 but thanks! Hope I can ace my test tomorrow:/

[erin]

Yes this is the exactly what I'm looking for. Thanks!

[URNOTADJ]

The "Hannah has 127 books" problem is incorrect. 127 - 300/z is not correct because Hannah is also a student at the school and would be donating the same amount as the other students. The correct equation would be 127 - 300/(z+1).

[maryamchannel]

I'd u don't mind can u do more complex questions like for grade 9

[saeedriyad]

Thx helped a lot phew i tought it was my end of my life but u posted this vid now i will pass my exam

[juicy_berger]

3:22 This one doesnt make sense to me. At no point in time does it disclose how many books hannah donated. It only states she has 127 books in her collection. why would hannah's number be relevant if we still don't know how many books she donated?

[bliss]

Not me watching this video for sixth graders while in eighth grade

[ashtonsmith]

My name is Rick Harrison and this is my pawn shop! I work here with my old and my Son Big Hoss. If there isnone thing ive learned in this buissnes its that you never know what is going to come through that door!

[jessi]

As a year 7, I can confirm my work is more like (2y-y7)(3y-4)

[apd_a]

literally thought me better than my own math class

[shift]

Can someone help me

if it takes angelo 10 minutes at the rate of 1/20 of the easy assignment per minute then he does 10/20 or 1/2 of the assignments that each boy does is a fraction of the whole work. so the expressions for school work in the last column of the table have a sum of 1

[lilywalker]

the first ever maths video that aint helpful one bit

[nazmussadat]

Sir what is the link you have showed in the video

[MofanWang]

btw I’m actually on the real cougars hockey team

[JaninDupont]

I d like to point that this video is teaching a mistake at 2:35. The right answer is (36-2)/c +2 . If you have 4 players Matthew scored 10.5 goals and his teammates scored (36-2)/c = 8.5 goals for a total of 36 goals

[ZaBaoi]

is it me or at 2:40 - 2:41 he talks super fast

[franciscopizarro]

You buy 15 apples and a $2.75 block of cheese. The bill is $6.20. How much does each apple cost? Write out the equation

[MaxLoswald]

Mission failed I can't find the total of acz & d