Subtracting decimals example 1 | Decimals | Pre-Algebra | Khan Academy

Just like when add, be sure you align decimals before subtracting.

Missed the previous lesson?

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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[jamesmazzarella]

Hi. I do tutoring with a range of ages in the elementary grades. Khan Academy is a godsend, for both me and my students. Can't thank you enough for your common sense, easily understood explanations of sometimes complex topics. Keep up the good work, PLEASE!

[aldebearart]

I love you Khan Academy! I'm a home-schooled student and I have learned so much!

[lucyrodriguez]

Thank you for helping me on my homework!

[rnlxyplayz]

I just started looking at this I’m SMART WITH ADDING DECIMALS

[lindsaypark]

what program do you use? the one you write with?

[danyellecovay]

You can subtract 0-6. It is equal to -6. You just don't want to. :)

[puglover]

you guys are really helpful and really help me so thank you

[ninabeanmama]

This guy is all that i like it very knowlegeable

[elliahnagoodin]

can you plz do a money problem like at a concession s tand sodas cost 1.25 and hot dogs cost 2.50 natalies brought pizza but buying medium sodas can natlies group buy with 20 bucks ?

[almita]

thanks so much an if you can make a video of lining up the decimal point when subtracing or adding

[mariamkhan]

hey here in 2021, helps with my hm! even my mum loves u guys ugh I'm so late lmao Ly tho :))

[pring]

why must you do this think about the children

[aldebearart]

Because there is tenths, hundredths, thousandths, and many more.

[aldebearart]

Yes. Or else you might get the wrong answer.

[enjay]

I am doing math when I am done will play fortnite

[SinghBros]

video makes no sense i did 15.8 minus 13.88 lined up the decimals got 2.08 correct answer is 1.92 how? i line the decimals up makes no sense i guess khans wrong