Adding Decimals - By tecmath
Transcript
| 00:00 | Hello and welcome to the Tech mouth channel . What | |
| 00:02 | we're gonna be doing today is going to be adding | |
| 00:03 | some decimals together . We're gonna be looking at how | |
| 00:05 | we do this . So Pretty much I'll give you | |
| 00:09 | an example of where we would add decimals . So | |
| 00:12 | for instance the one we're gonna look at is this | |
| 00:14 | one here we go , 15 point 301 I'm going | |
| 00:19 | to add this to 2.9 And I'm going to add | |
| 00:24 | this as well to 0.07 . And this problem will | |
| 00:28 | show us how we actually add decimals together . So | |
| 00:31 | when we add any number together , it's really , | |
| 00:34 | really important to line up the numbers in the same | |
| 00:36 | place where you , so we have units here here | |
| 00:39 | here and you know , tents , which is here | |
| 00:43 | here here . So we line these up and that's | |
| 00:45 | really , really important with decimals . Um , and | |
| 00:48 | it's really , really easy with decimals to because basically | |
| 00:51 | the way you do this is lining everything up with | |
| 00:52 | the decimal place . I'll show you how we would | |
| 00:55 | do this . So we would go We would write | |
| 00:58 | this as follows 15.301 . And I'm going to add | |
| 01:03 | this to 2.9 . We're going to see the decimal | |
| 01:06 | places lining up together and we're going to add this | |
| 01:10 | to zero 07 Okay , so we're gonna add these | |
| 01:16 | all together . Yeah , I think the other , | |
| 01:21 | so everything lines up , it's really good . So | |
| 01:23 | the 10th hundreds thousands all line up together . Um | |
| 01:28 | but you also see that not all of these numbers | |
| 01:31 | actually have , this one has tents but it doesn't | |
| 01:33 | have 104 thousands . What is this one does and | |
| 01:36 | this one doesn't have thousands . So I think the | |
| 01:39 | next step with this and you can , as you | |
| 01:41 | get better you might not do this is you can | |
| 01:43 | actually pad these numbers out . So basically we add | |
| 01:45 | zeros until all the numbers have the same week . | |
| 01:48 | It's just a good habit to get into the start | |
| 01:51 | . Okay suit we're going to make this point with | |
| 01:54 | three decimal places in length . This one's a point | |
| 01:56 | with three decimal places in length . This one's a | |
| 01:58 | point with two . So add one more zero . | |
| 02:00 | They're never got three decimal places in length and then | |
| 02:03 | we can add these guys together just like a standard | |
| 02:07 | some sort of thing . So one we'll start with | |
| 02:09 | thousands one plus nothing plus nothing is one . Well | |
| 02:14 | I shouldn't say nothing . I told off in another | |
| 02:16 | video for this alcohol is 00 plus zero plus seven | |
| 02:21 | . He's seven . We're gonna look at that attempts | |
| 02:24 | . So three plus nine is 12 . So from | |
| 02:28 | that I'm gonna put the uh two down At a | |
| 02:32 | 10 part . I'm gonna carry over here as a | |
| 02:34 | one . Okay , so then we're gonna go one | |
| 02:37 | plus five is six plus two Is 8 , 0 | |
| 02:42 | is id . And then the one is all by | |
| 02:46 | itself , so you end up with this and then | |
| 02:48 | we just have to wear this desk will place lines | |
| 02:50 | up , we just put the decimal there but that | |
| 02:54 | is a writer so it's not too bad , it's | |
| 02:57 | nice and easy . Hopefully you can work this out | |
| 03:00 | and tell you what , I'll give you one more | |
| 03:01 | example just so you can practice this . Sorry what | |
| 03:08 | about we I give you This one here , we're | |
| 03:11 | gonna go three numbers again , we'll go uh 256.01 | |
| 03:18 | . We're going to add this to 27.8 four and | |
| 03:24 | I'm going to add this to 0.011 . Okay So | |
| 03:31 | first off again we're gonna right there so they occur | |
| 03:34 | in a nice straight line and everything lines up . | |
| 03:36 | So so we'll start down here 256 0.1 Uh so | |
| 03:44 | now there's 27 is gonna line up 27 and you | |
| 03:47 | know it will because of the decimals line up here | |
| 03:50 | , 0.84 And I also have 0.011 . Okay , | |
| 03:58 | this one is two days away , this is two | |
| 04:00 | days away , this is three days away . So | |
| 04:02 | I'm gonna put some zeros here to have these other | |
| 04:04 | numbers out a little bit . You won't do this | |
| 04:07 | as you get better and better at that . But | |
| 04:08 | again it's it's good practice at the start and we're | |
| 04:10 | going to add these . So let's do this . | |
| 04:13 | 050 plus one . What one plus four plus ? | |
| 04:17 | Would is six zero plus 80 I The deaths of | |
| 04:24 | ice there , six or 7 is 13 . I | |
| 04:28 | put the three there . I carry . The one | |
| 04:31 | one plus five is six plus two . He's right | |
| 04:36 | . And then finally the two from 200 goes there | |
| 04:38 | . So answer . There's 283.861 . Anyway . I | |
| 04:44 | hope you did really , really well with those . | |
| 04:45 | I'll see you next time . Bye . |
Summarizer
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Adding Decimals is a free educational video by tecmath.
This page not only allows students and teachers view Adding Decimals videos but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
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