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Lesson 2
 

Lesson 2

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    Lesson 2 Lesson 2 Document Transcript

    • The worlds all-time best selling cr*i;i;sicl!b* 1r F*$ !... -r . eopyrigtrt book is Gulnness Warld Records. Frarn October 1955 to June ?002, 94767 083 copies were sold. You can extend the place-value chart ts represent 94 767 083. Here are sorne of the world records reported in the Guinn*ss World Recards 2004. " The largest bag of cookies was made in London, Ontario. It contained 100 152 chocolate chip cookies. , * The greatest attendance at an Olympic Games was 5 797 gZ3. The games took place in Los Angeles in 1984. : The nrcst dominoes toppled by a group was 3 S47 ?95, out of a possible 4 000 000. t, This took place at Domino Day"Expressions for Millions, . in l*eeuwarden, Netherlands. The rftCIst common name in the world is Li. China aione has 87 000 000 people with this name.;]},irrltii:,: Take turns reading the records aloud. h.achof you chooses 2 numbers from the records. *epresent each number in as rnany ways as you can. { Resd cnd wrile whole numbers up to ond greaier thon on* Enillic*. g5
    • $. Shour ffi#?# $hare Share your work with another pair of students Talk about the different ways you represented your numbers &*9**a*&6&*9&***sst6a*4 ss**+&p*+&s***4s*4ae9fa**s4w*ss&qc }Thesefactsmayhelpyoureadandwritelargewholenumbers, period " Fromright to left, each group of 3 place values is called a . Within each period, the digits of a nurnber are read as hundreds, tens, and ones in the This place-value chart shows the number of items world,slargestcol|ectionofmatchbookcovers,3159119 Thousands Period Units Period Isillions Periad Hundreds Tens 0nes Hundrede Tens t,nes Hundreds Tens Ones q 1 o ? 1 5 1 t ,Nfi* ,t0 B + *** **s !*# 0s$ $s **s We read this number as: nineteen three millionone hundred fifty-ninethousand one hundred When we rec;rd lorge nur.rlbers, we sog the penod ncr,ne afien eoch period excePt the oniis Periercj. ,ffe leffe ra sPir*e, fteMe*n the periods when we write a We can write this number in: number wilh:5 0r m$redigits. . standard form: 3 159 1 19 expanded form: 3 00CI 000 + 100 000 + 50 s00 +9000 + 100 + 10 + 9 i9 number-word form: 3 million 159 thousand 1 Gne tfisu*a*d milticn is:*ne billion One thousand bittien is sfle trilliorl Unil ? Lu**ut e6
    • The place-value chart can be extended to the left to show greater whole numbers" This place-value chart shows the approximate number of cells in the human body. Trillions Billions Millians Thousands Units H T o H T 0 H T o H T o H T o 5 0 0 0 o 1 0 0 0 0 0 0 0 0 We write: 50 000 100 000 000 We say: fifty trillion one hundred millisnI--tJ 1" Write each number in standard form. sl 6 rnillion 276 thousand 89 h! ?CI 000 000 + 4 000 000 + 300 000 + 40000 + 2000 + 500 + 80+4 cl two billion four hundred sixty million sixty-nine thousand eighteen l-{*w does a million compare to a thousand? To ten thousand? Use a calculator to check your answer. Writ* each number in expanded form. al 75 308 403 bt 64 308 470 204 c) 99 30A 327 4- Write the value of each underlined digit. al 637 3$4 b) s4 286473 r,, cl 4i g6t S14 Nurnber Strategies :.: , 1;,:. d! 2! 04i 304 000 Round each numberto the nearest hundrcd, ths nearestthsusaild,, , :Write the number that is: and the nearestten thousand. .,{} l0 0S0 more than 881 462 . d75 498 . 1OCI **0less than Z tg3 4g6 . 3 StS 34$ " , ,,:l iijii t sOs *00 mare rhan 746 000 . rH 46$ ffi.,l 000 SSS less than 624327 ZA; l$ 9tl4 508 ffihow y*u kn*w. Unit2 lessonZ 8,
    • 6. China is the most populated country in the world ln200l,ithadanestimatedpopulationofonebillion two hundred seventy-four million nine hundred fifteen thousand Writethisnumberinstandardformandinexpandedform. ?. The largest known prehistoric insect is a species of dragonfly" It lived about 280 000 000 years ago Write this number in words- The worldl largest shopping centre is in Edmonton, Alberta. It covers an area of 492386 m2 and cost about 51 200 000 000 to build. Write these numbers in a place-value chart fcrty-six." g. A student read 3 000 146 as "three thousand one hundred How would you explain the students error? io. lam a number between 7 000 000 and I000 000.ffi ;,r1,*:- All my digits are odd All the digits in my thousands period are the fime All the digits in my units period are the sarne The sum of mY digits is 31" What number am l? Give as many answers as You can What strategies did you use to find the mystery number? Look through new$PaF*l$ Explain how You know the value of and magazines, each digit in the number 5 487 302 Find large numbers Fiow are dr* numher* wrlt{e u*it ? le*s* t8 f*cus i Question I0