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NAMING LARGE NUMBERS Let the humongosity begin!

Let the humongosity begin! As you may have already heard, ancient people would make marks to stand for the amounts of things. | | | | That’s fine

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Slide 2 Let the humongosity begin! Slide 3 As you may have already heard, ancient people would make marks to stand for the amounts of things. | | | | Thats fine for a few things but when you see | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | then understanding how much you have is a challenge. Slide 4 We recycle the same ten symbols but theyre worth more in a different position, in the same way that a ten dollar bill is worth more than a 1 dollar bill, even if the piece of paper is the same size. This is the slide show for people who already know how to name numbers up to 1000. If you want to review that, go to the first slide show in this set, 094NamingSmallNumbers. Slide 5 The fourth, fifth and sixth places in a decimal number stand for thousands. 1,000 is one thousand. The three digits afterward mean that these digits dont just stand for one puny thing one goldfish, one bicycle or one sweaty sock but they stand for a group of one thousand of whatever youre counting. Thus, 6,000 means six *thousand* sweaty socks or goldfish. Slide 6 (http://kokogiak.com/megapenny/default.asp )http://kokogiak.com/megapenny/default.asp Slide 7 Slide 8 If you want to see more pictures of lots and lots of things http://wehrintheworld.blogspot.com/2009/0 2/visualizing-billions.html http://wehrintheworld.blogspot.com/2009/0 2/visualizing-billions.html Slide 9 So the numbers in the fourth fifth and sixth places are in the Thousand group. We can name that clump as if it were its own number, and then add thousand to it to show were really talking about something a thousand times as big. In proper math grammar, we do not say and, since thats reserved for adding things *less* than one (one and a half pounds or one and 3 tenths of a mile) 6,000 = six thousand Slide 10 2,000 = two thousand 12,000 = twelve thousand 56,000= fifty-six thousand 100,000 = one hundred thousand 232,000 = two hundred thirty two thousand Read the smaller number in front of the comma, then add thousand to show how much it is worth based on its position. Slide 11 208,000 = Two hundred eight thousand. There arent any tens but we dont say it. We still have to put that amount none in the space. Four hundred six thousand = 406,000 Slide 12 Write these out in words. 34,000 ________________________ 8,000 __________________________ 18,000___________________________ 111,000_______________________________ 408,000 _______________________________ Slide 13 34,000 thirty-four thousand 8,000 eight thousand 18,000 eighteen thousand 111,000 one hundred eleven thousand * 408,000 four hundred eight thousand * *leave out the and even if you thought it Slide 14 Three hundred twenty-one thousand Fifty-six thousand One hundred thousand Slide 15 Three hundred twenty-one thousand 321,000 Fifty-six thousand 56,000 One hundred thousand 100,000 so, you read the digits in front of the comma as if they were the only digits there, then add thousand to show they are standing for something a thousand times as big. Slide 16 998,000 = nine hundred ninety-eight thousand 999,000 = nine hundred ninety- nine thousand . Whats next? 1,000,000 --- a THOUSAND THOUSAND. But thats not what we call it. Hey, it gets another comma, and its own name. This is what a million is all about. Slide 17 Slide 18 3,000,000 is three million. 147,000,000 is one hundred forty-seven million. Look for patterns Your turn to try these! Click when youre ready to check the answers. 14,000,000 _________________ 100,000,000 244,000,000 Slide 19 14,000,000 fourteen million 100,000,000 a hundred million 244,000,000 two hundred forty-four million Slide 20 Twelve million Twenty million Two hundred twenty-two million Slide 21 Twelve million 12,000,000 Twenty million 20,000,000 Two hundred twenty-two million 222,000,000 Slide 22 Imagine a *thousand* rooms with a million dollar bills in them (like the picture of a million). Thats what a billion would look like. It would take a whole building. In numbers, it looks like this: 1,000,000,000 -- one billion 345,000,000,000 three hundred forty-five billion 801,000,000,000 eight hundred one billion Slide 23 45,000,000,000 100,000,000,000 727,000,000,000 Slide 24 45,000,000,000 Forty-five billion 100,000,000,000 one hundred billion 727,000,000,000 Seven hundred twenty-seven billion Slide 25 Thirteen billion Nine hundred ninety nine billion One hundred eleven billion Slide 26 Thirteen billion 13,000,000,000 Nine hundred ninety nine billion 999,000,000,000 One hundred eleven billion 111,000,000,000 Slide 27 Imagine a *thousand* buildings with a thousand rooms with a million dollar bills in them (like the picture of a million). Thats what a trillion would look like. It would take a whole block In numbers, it looks like this: 1,000,000,000,000 -- one trillion 335,000,000,000,000 three hundred thirty- five trillion 601,000,000,000,000 six hundred one trillion Slide 28 3,000,000,000,000 17,000,000,000,000 111,000,000,000,000 532,000,000,000,000 901,000,000,000,000 Slide 29 3,000,000,000,000 three trillion 17,000,000,000,000 seventeen trillion 111,000,000,000,000 one hundred eleven trillion 532,000,000,000,000 five hundred thirty-two trillion 901,000,000,000,000 nine hundred one trillion Slide 30 Five hundred sixty-five trillion Nine trillion Nine hundred trillion Six hundred thirty-seven trillion Two hundred three trillion Slide 31 Five hundred sixty-five trillion 565,000,000,000,000 Nine trillion 9,000,000,000,000 Nine hundred trillion 900,000,000,000,000 Six hundred thirty-seven trillion 637,000,000,000,000 Two hundred three trillion 203,000,000,000,000 Slide 32 Thousands, millions, billions and trillions lets mix em up. Youll need to figure out two things: the name of the number that the group would be if it were all by itself The name of the group to say afterwards 56,000,000. Its fifty-six --- but with six zeroes afterwards, that makes it fifty-six million. Slide 33 413,000,000 21,000 5,000,000,000 101,000 65 65,000,000,000,000 307,000,000 91,000,000,000 610,000 Slide 34 413,000,000 four hundred thirteen million 21,000 twenty-one thousand 5,000,000,000 five billion 101,000 one hundred one thousand 65 sixty-five 65,000,000,000,000 sixty-five trillion 307,000,000 three hundred seven million 91,000,000,000 ninety-one billion 610,000 six hundred ten thousand Slide 35 Seventeen billion Ninety-seven million Ninety-seven thousand Two hundred eighty-five million Two hundred eighty-five billion Two hundred eighty-five trillion Eighty-five thousand Twelve billion Slide 36 Seventeen billion 17,000,000,000 Ninety-seven million 97,000,000 Ninety-seven thousand 97,000 Two hundred eighty-five million 285,000,000 Two hundred eighty-five billion 285,000,000,000 Two hundred eighty-five trillion 285,000,000,000,000 Eighty-five thousand 85,000 Twelve billion 12,000,000,000 Slide 37 Next show will go over how to name large numbers that dont have a lot of zeroes at the end.