Workout Click here - Corbettmaths · Limits of Accuracy Video 183 on Question 1: Declan is...
Transcript of Workout Click here - Corbettmaths · Limits of Accuracy Video 183 on Question 1: Declan is...
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Question1: Writedownthelowerboundandtheupperboundforeachofthefollowing:
(a) 4gmeasuredtothenearestgram(b) 12cmcorrecttothenearestcentimetre
(c) 75milesgiventothenearestmile
(d)50kgmeasuredtothenearest10kg
(e) 130secondsgiventhenearest10seconds
(f) 225kmgiventothenearest5km
(g)400mlgiventothenearest100ml
(h) 1900hourscorrecttothenearest10hours
(i) 2700mmmeasuredtothenearest100mm
(j) 5000kmcorrecttothenearest100km
(k)28000kgmeasuredtothenearest10kg
(l) 30000km/hgiventothenearest10000km/h
Question2: Writedownthelowerboundandtheupperboundforeachofthefollowing:
(a) 80peoplegiventothenearest10people
(b)£10giventothenearestpound
(c) 500chairscorrecttothenearest100chairs
(d) 14000Mlightsgiventothenearest1000Mlights
(e)£29000giventothenearest£100
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https://corbettmaths.com/2013/05/28/lower-and-upper-bounds/http://www.corbettmaths.comhttp://www.corbettmaths.comhttps://corbettmaths.com/2013/05/28/lower-and-upper-bounds/
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Video183onwww.corbettmaths.com
Question3: Writedownthelowerboundandtheupperboundforeachofthefollowing:
(a) 3.8cmmeasuredtothenearest0.1centimetre
(b)15.2secondstothenearesttenthofasecond(c) 6.4groundedtoonedecimalplace
(d) 515.9kgcorrecttoonedecimalplace
(e) 0.07secondsroundedtotwodecimalplaces
(f) 5.26mmmeasuredtothenearest0.01mm
(g) 24.091kgcorrecttothreedecimalplaces
(h) 8cmmeasuredtothenearest0.1cm
Question4: Writedownthelowerboundandtheupperboundforeachofthefollowing:
(a) 4milescorrectto1signiMicantMigure(b) 30cmroundedto1signiMicantMigure
(c) 900mlgivento1signiMicantMigure
(d) 0.2mgivento1signiMicantMigure
(e) 14hoursgivento2signiMicantMigures
(f) 280gcorrectto2signiMicantMigures
(g) 42000kmroundedto2signiMicantMigures
(h) 748gallonscorrectto3signiMicantMigures
(i) 400mroundedto2signiMicantMigures
(j) 8000kggivento2signiMicantMigures
(k) 290000km/hgivento4signiMicantMigures
(l) 0.024correctto2signiMicantMigures
(m) 15.1kilometresroundedto3signiMicantMigures
(n) 100gcorrectto1signiMicantMigure© CORBETTMATHS 2017
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Video183onwww.corbettmaths.com
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Question1: Declanisconsideringbuyingasofathatis207cmlong. ThespacethatDeclanwantstothesofais210cmtothenearest10cm. ShouldDeclanbuythesofa?
Question2: MrJoneswantstobuyanotebookforeverystudentinyear11. Heknowsthereare300studentsinyear11tothenearest100. Whatisthegreatestpossiblenumberofnotebooksthathewouldhavetobuy?
Question3: ThelengthofaMieldis400mtothenearest10m. Rebeccasaysthelowerboundis350mandtheupperboundis450m. Isshecorrect?
Question4: Thetableshowsthepricesofpostinglargeletters. Gerardwantstoposttwolargeletters:
-alargeletterweighing230gtothenearest10grams -alargeletterweighing500gtothenearest10grams
(a)Whatisthesmallestpossiblepriceforpostingbothlargeletters?
(b)Whatisthegreatestpossiblepriceforpostingbothlargeletters?
Question5:Belowisaquestionthatwaspostedonlineandtheresults. Explainwhichansweryouagreewith.
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https://corbettmaths.com/2017/06/28/limits-of-accuracy-1-answers/https://corbettmaths.com/2017/06/28/limits-of-accuracy-1-answers/http://www.corbettmaths.comhttp://www.corbettmaths.com