All of iGCSE Upper and Lower Bounds In 30 Minutes!

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  • เผยแพร่เมื่อ 1 ก.พ. 2025

ความคิดเห็น • 184

  • @alandingleton6975
    @alandingleton6975 ปีที่แล้ว +40

    Best TH-camr

  • @mropscripter876
    @mropscripter876 ปีที่แล้ว +31

    Just wanted to say thanks for CARRYING my IGCSE November A* last year!!! Easy 93%

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +7

      Like how 93% was easy :-)

    • @aunshah3836
      @aunshah3836 9 หลายเดือนก่อน +3

      How do you actually know your percentage from mocks or something? Because I only know my grade not even percentile is mentioned anywhere on my IGCSEs giving in Pakistan btw.

    • @Shaza44
      @Shaza44 3 หลายเดือนก่อน +2

      @@aunshah3836 you can ask your school or the British council for your detailed report where they send how much you got in each paper

  • @user-ob1yl6so6v
    @user-ob1yl6so6v ปีที่แล้ว +15

    I FINALLY GOT IT. this was most confusing igcse topic for me -after vectors and matrices). Thanks a lot.

  • @SmartGuy222
    @SmartGuy222 ปีที่แล้ว +42

    Mr. Ginger, could you please post the following topics:
    1. Money
    2. Interest
    3. Percentages
    4. Rate and Ratio
    5. Measurement
    6. Speed-Time and Distance-Time graphs

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +23

      I will include 1-3 in one of All of iGCSE Percentage Calculations video 😊👍

    • @xpoint849
      @xpoint849 ปีที่แล้ว +3

      @@GingerMathematician I think ratios could be included as well. They are related to the first 3...

  • @darlinggdita
    @darlinggdita ปีที่แล้ว +4

    thank you so much! i have math mock exams tomorrow and ive been delaying learning bounds as much as i could. but you explained it really really good and now i can finally understand it! thank you! 😭😭😭😭

  • @GamingofSausage
    @GamingofSausage ปีที่แล้ว +1

    Thank you. I am now working on pastpapers and learning in your online classes, now i am one of the members of the front tiers in my class, Thank you!

  • @Mohammad01234
    @Mohammad01234 ปีที่แล้ว +6

    Thank you soo much, you wont belie who much this helps, i got an exam and this really helped me understand this!

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Great to hear Aviator, any video suggestions please let me know :-)

  • @VihaanChohan
    @VihaanChohan ปีที่แล้ว +4

    thank you so much mr . Ginger
    This is so Helpful and i never understood this topic and next wednesday i have my mock exam on math paper 2 u r a life saver
    Keep up the great work

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      Keep working through the All of iGCSE Maths Playlist 😊👍: th-cam.com/play/PLYNwTLhq9xZbbYnEipbmqFWb4b-NpOkpd.html

  • @icced_lattae4864
    @icced_lattae4864 ปีที่แล้ว +9

    Oh my god! thank you so much for fulfilling my request ! appreciated 💕🙇‍♀️

  • @gigiajuwa5451
    @gigiajuwa5451 ปีที่แล้ว +1

    I have papers today, this is my last minute revision, thanks a lot, I forgot all about this topic. Keep up the good work.

  • @smithadarshini9753
    @smithadarshini9753 10 หลายเดือนก่อน +1

    thank you so much for this!! was extremely confused with this topic as a whole and this video single-handedly cleared all my doubts:)

    • @GingerMathematician
      @GingerMathematician  10 หลายเดือนก่อน +1

      Great I could help 🙂 Do you have mocks soon?

  • @_shxyxn_
    @_shxyxn_ ปีที่แล้ว +3

    I am so satisfied from your teaching and i wanted to thank you sir🎉❤

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      Great to hear, make sure to use the All of iGCSE Maths Playlist to fill any gaps 😊👍 th-cam.com/play/PLYNwTLhq9xZbbYnEipbmqFWb4b-NpOkpd.html

  • @_.dinass_
    @_.dinass_ 11 หลายเดือนก่อน +2

    The best maths teacher💗

  • @bryanmoreno7736
    @bryanmoreno7736 4 หลายเดือนก่อน +1

    Ur videos taught me better than my book dude😂👍, hope the best for u

  • @user-ob1yl6so6v
    @user-ob1yl6so6v ปีที่แล้ว +11

    i swear this topic is harder and more confusing than whole igcse syllabus. after the day i studied this topic, i forgot almost everything. also roundings are similarly hard for me. i know it looks actually pretty easy and for most of the people it is easiest but for me, it's exactly not. i hope i won't miss a* just because of these type of question because it's sooo confusing (btw my teacher said that i always make mistakes in supereasy questipns especially first questions of ig are generally so easy. but peraonally, i think that studying harder questions instead of basic stuff makes more sense. but i lose marks just because of basic things and this makes me soo sad.

  • @sarthakahuja979
    @sarthakahuja979 ปีที่แล้ว +4

    Legendary Video.

  • @aliizzat5047
    @aliizzat5047 ปีที่แล้ว +1

    amazing video helped me so much have exams in 2 3 weeks

  • @theunetteviljoen8279
    @theunetteviljoen8279 ปีที่แล้ว +2

    Thank youuuu!!! The best out there.

  • @srishti7313
    @srishti7313 ปีที่แล้ว +5

    Hi sir, thank you so much for you videos and all the time and effort you put in for us, I really appreciate it. Would it be possible for you to do a walkthrough of Paper 6 for the 2022 papers?

  • @slaveofAllah14
    @slaveofAllah14 10 หลายเดือนก่อน +1

    I loooovovoovovvvvvvvvvvvvvveee you soo muchh. I never understood these questions well or got them right until today and im super excited for my math exams tumz, Im sure to smash all lower and upper bound questions which come my way

    • @GingerMathematician
      @GingerMathematician  10 หลายเดือนก่อน +1

      That's fantastic to hear! Keep up the great work and good luck on your math exams!

  • @AfsheenHossain-nc3bq
    @AfsheenHossain-nc3bq ปีที่แล้ว +2

    12:45 can I keep the answer in fraction form?

  • @Mahalovescat
    @Mahalovescat ปีที่แล้ว +3

    I love your videos

  • @AliaAliaa-dv7fn
    @AliaAliaa-dv7fn ปีที่แล้ว +2

    Outstanding video sir ❤, I’ve been watching your videos for quite a while and I must say that I am really great full I stumbled across your explanation. I also have a question in 6:08 why did you halve the 0.5 and 10? That would be wonderful if I got an answer and if there is a better way for communication please tell me!

  • @justsomeguywithoutamustach4132
    @justsomeguywithoutamustach4132 ปีที่แล้ว +1

    Hi just wanted to thank you for this video i have a quiz tomorrow and this was very helpful to check my understanding

  • @abeerfatima806
    @abeerfatima806 ปีที่แล้ว +4

    Can someone share with me the video of his predictions for May June 2023 exams paper 2 and paper 4 please . Thankyou

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      Right here Abeer :-) : th-cam.com/video/toNVnQqdiYA/w-d-xo.html and th-cam.com/video/c46rJ0DGi_E/w-d-xo.html

    • @abeerfatima806
      @abeerfatima806 ปีที่แล้ว +1

      @@GingerMathematician Thankyou 🫶🏻

  • @rainb1750
    @rainb1750 ปีที่แล้ว +2

    Sir what if a value is to the nearest significant figure like 2 how do we approach it .I understand that
    1 decimal places=0.1 so 1 significant figure will equal what?

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      If a value is given to the nearest significant figure, it means that only one digit is certain and the other digits are uncertain. For example, if a value is given to one significant figure, it means that only the first digit is certain and the other digits are uncertain.
      In terms of decimal places, one significant figure is equivalent to one decimal place. So if a value is given to one significant figure, it means that it is accurate to one decimal place.
      To answer your question specifically, if a value is given to the nearest significant figure of 2, it means that it is accurate to one digit after the decimal point or to the nearest 0.01. This is equivalent to two decimal places.

  • @khalidibrahim8710
    @khalidibrahim8710 ปีที่แล้ว +2

    23:26 i indeed fell for the trick

  • @r_a4z8
    @r_a4z8 ปีที่แล้ว +2

    Wish me luck for Monday's Mock 1!
    and yes I fell for the trick...

  • @leburaolawale8132
    @leburaolawale8132 ปีที่แล้ว +2

    Mr. Ginger please can you share your slide on the lower and upper bound

  • @dhanyab5814
    @dhanyab5814 ปีที่แล้ว +4

    Hello! Thank you soo much
    Can u also include more videos about direct and inverse proportions and linear equations plss

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Variation and Proportion right here 😊 th-cam.com/video/CU9EqGFT2os/w-d-xo.html

  • @IrrationalCR
    @IrrationalCR ปีที่แล้ว +2

    I've got an exam tomorrow on this topic, thank you so much
    I also didn't fall for the trick

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Best of luck and let me know how it goes tomorrow 😊👍

  • @V_ChessGuy
    @V_ChessGuy 3 หลายเดือนก่อน

    Thank you so much! I'm working through your videos and they are amazing

  • @tankyplayz1738
    @tankyplayz1738 10 หลายเดือนก่อน +1

    At 12:40 of the video u could have extended it till 14.5 of the 14 as the highest common factor and so of the other numbers

    • @GingerMathematician
      @GingerMathematician  10 หลายเดือนก่อน +1

      We do not take the upper bound of the factor itself, we take the upper bound of the formula :-)

  • @life_asthepooh8804
    @life_asthepooh8804 ปีที่แล้ว +2

    Hi mr ginger could you post a video on set notation and venn diagram & circle geometry

  • @alyssach
    @alyssach ปีที่แล้ว +3

    hi! is it possible if you do one about map scales? appreciate your work a lot !!

    • @wk6z
      @wk6z ปีที่แล้ว +2

      i also dont know how to do those , did u learn by now

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +4

      Thanks for the suggestion Alyssa, I'll look into it 👍

  • @foxyfoxfilms
    @foxyfoxfilms ปีที่แล้ว +1

    Mr ginger, do you have a video related to speed time graphs? I didn’t seem to find one in your channel…

  • @Marcos445.
    @Marcos445. 9 หลายเดือนก่อน +1

    Thank you so much❤

    • @GingerMathematician
      @GingerMathematician  9 หลายเดือนก่อน

      I'm thrilled you enjoyed the video and took a moment to leave a comment! If you have any suggestions or ideas for future videos, I'm all ears and would love to hear them. Please don't hesitate to send your thoughts over to gingermathematician@gmail.com

  • @erica_el7930
    @erica_el7930 ปีที่แล้ว +2

    thank you so much

  • @Acrylic_floral
    @Acrylic_floral 9 หลายเดือนก่อน +1

    Thanks for the amazing video ❤

  • @narutolover6281
    @narutolover6281 ปีที่แล้ว

    Thank you so much❤❤
    I have my exams tomorrow and this helped me a lot😊😊

  • @qistinabatrisyia5996
    @qistinabatrisyia5996 ปีที่แล้ว +1

    11:17 i don't quite get why you're taking 14. Do you mind explaining?

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      I need the upper bound for f - that is I need the biggest factor of 14 and 28, which is 14 :-)

    • @qistinabatrisyia5996
      @qistinabatrisyia5996 ปีที่แล้ว

      why isnt the upper bound 28

    • @sissi9100
      @sissi9100 ปีที่แล้ว

      @@qistinabatrisyia599628 is not a common factor of 14 and 28

  • @yigitcelikbas1737
    @yigitcelikbas1737 2 หลายเดือนก่อน +2

    i love you please dont die😭😭😭

  • @AnnamAlam
    @AnnamAlam 2 หลายเดือนก่อน +1

    thanks you saved my life.

  • @CutBunnyBoyKing
    @CutBunnyBoyKing หลายเดือนก่อน

    Best explanation 🙌🏻

  • @letusleave690
    @letusleave690 11 หลายเดือนก่อน +2

    thankyou! this really helps!

  • @the_aesthetic_girl_1
    @the_aesthetic_girl_1 8 หลายเดือนก่อน +1

    A quick question, as the amount of people at the footbal match is discrete data, wouldn't you have to take away one from the upper bound? This is what I was taught, so I am just asking whether you must do this or not. Thank you

  • @anushvikondaveti2463
    @anushvikondaveti2463 4 หลายเดือนก่อน

    thank you so much i terribly needed this 🙏

  • @mohannadsalah3135
    @mohannadsalah3135 28 วันที่ผ่านมา +1

    I have a question why in the question where it said the largest possible value of f/mp, why is f the UB and m and p are the LB?

    • @GingerMathematician
      @GingerMathematician  28 วันที่ผ่านมา +1

      Because we want to make the overall fraction as large as possible :-)

    • @mohannadsalah3135
      @mohannadsalah3135 28 วันที่ผ่านมา +1

      @@GingerMathematician But shouldn't it be UB/UB x UB because it's Upper bound?

    • @GingerMathematician
      @GingerMathematician  28 วันที่ผ่านมา

      @@mohannadsalah3135 Which is bigger, 15 / 2 or 15 / 3?

    • @mohannadsalah3135
      @mohannadsalah3135 28 วันที่ผ่านมา +1

      @@GingerMathematician Well that makes much more sense, obviously 15/2 is bigger, thank you so much

  • @r3p2_99
    @r3p2_99 ปีที่แล้ว +3

    Thanks 👍

  • @matte_pi6301
    @matte_pi6301 ปีที่แล้ว +2

    is this on the 0607 course as well?

  • @GCSEALevelMaths2025
    @GCSEALevelMaths2025 ปีที่แล้ว +4

    Good job sir

  • @y.nicole3653
    @y.nicole3653 ปีที่แล้ว

    Thank you so much, saved my life

  • @mattg9171
    @mattg9171 ปีที่แล้ว +2

    THANK YOU SO MUCH💞💞💞💞

  • @abeerfatima806
    @abeerfatima806 ปีที่แล้ว +3

    Thankyou could you please do trignometry

  • @saad6473
    @saad6473 ปีที่แล้ว +2

    Do you think you could do a prediction for Pakistan's May/June 2023 exam?

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      Predictions for May 2023 already on the channel 😊👍

  • @mohamedsobhi5523
    @mohamedsobhi5523 ปีที่แล้ว +3

    Could you please do a Paper 2 and Paper 4 M/J 2023 0580 prediction... thanks for your efforts

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Right here Mohamed :-) : th-cam.com/video/toNVnQqdiYA/w-d-xo.html and th-cam.com/video/c46rJ0DGi_E/w-d-xo.html

    • @mohamedsobhi5523
      @mohamedsobhi5523 ปีที่แล้ว

      @@GingerMathematician Oh Thanks :)

  • @bear1659
    @bear1659 ปีที่แล้ว +2

    Thank you sir!

  • @fatimaamin6536
    @fatimaamin6536 4 หลายเดือนก่อน

    Mr. ginger, over here 18:00 , they want the LOWEST number of minutes so he has to choose the lower bound of rate, for all people to leave so the middle number of no of people becz they want ALL people not lower bound of people, why did you choose lower bound of no people and upper bound of rate

    • @GingerMathematician
      @GingerMathematician  4 หลายเดือนก่อน +1

      Rate describes the number of people that leave per minute. Hence, we would need as high a rate as possible to minimise the time taken for all the people to leave!

  • @bombonsita4437
    @bombonsita4437 ปีที่แล้ว +1

    Great video, thanks!

  • @VihaanChohan
    @VihaanChohan ปีที่แล้ว +1

    um also mr ginger on thursday i have paper 2 maths mock
    any suggestions u have for me

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว

      Use my Paper 2 prediction video here 😊: th-cam.com/video/toNVnQqdiYA/w-d-xo.html

  • @meowochidream
    @meowochidream 2 หลายเดือนก่อน +1

    ❤ great video

  • @Violet_630
    @Violet_630 ปีที่แล้ว +1

    Thank you so much for the help!

  • @polkadots7792
    @polkadots7792 ปีที่แล้ว +1

    your a good ginga and i hope you know that, thanks!

  • @SmartGuy222
    @SmartGuy222 ปีที่แล้ว +6

    Smash the like button!

  • @Mokxtar777
    @Mokxtar777 11 หลายเดือนก่อน +2

    i dont rlly understand much cuz some qs u subtracting and some qs ur dividing

  • @datattack685
    @datattack685 หลายเดือนก่อน

    How do we know to subtract for some questions but also divide in other questions?

  • @aaravarora5860
    @aaravarora5860 5 หลายเดือนก่อน

    Thank you so much !🙏😃

  • @HalaMomani-yd3ez
    @HalaMomani-yd3ez ปีที่แล้ว +3

    can u do constructions plz

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +2

      I thought they were no longer on the course?!

    • @hummus2275
      @hummus2275 ปีที่แล้ว +1

      @@GingerMathematician The contrustion of triangles is on the 0580 course, sir.

  • @abdullahsami6155
    @abdullahsami6155 ปีที่แล้ว +1

    Sir, can you solve 7+ marks world problematic questions for all sorts of topics?

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Something like this 😊? th-cam.com/video/cTL1fGzTdfs/w-d-xo.htmlsi=NsYnpFLFiKSXGe9o

  • @leburaolawale9318
    @leburaolawale9318 ปีที่แล้ว +1

    Can you please do a prediction for oct/nov 2023 0580 paper 2 and paper 4. Kindly share the slide for upper and lower bound

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Right here 😊 th-cam.com/video/NXI_r9avOXQ/w-d-xo.htmlsi=xS1_-oVljG8gAqMQ

    • @leburaolawale9318
      @leburaolawale9318 ปีที่แล้ว

      Thank you. I would really appreciate the slide on bounds.@@GingerMathematician

  • @shinninglightministry7050
    @shinninglightministry7050 ปีที่แล้ว +2

    Now we're talking

  • @ishamobashar9853
    @ishamobashar9853 9 หลายเดือนก่อน +1

    thanks 👍

  • @howjohan1529
    @howjohan1529 ปีที่แล้ว +2

    Smart

    • @GingerMathematician
      @GingerMathematician  ปีที่แล้ว +1

      Thanks hopefully you found the methods useful 😊👍

  • @Marie-NoelleSefakorArkutu
    @Marie-NoelleSefakorArkutu 4 หลายเดือนก่อน

    Ty smmmm I understand now

  • @SmartGuy222
    @SmartGuy222 ปีที่แล้ว +2

    No Rounding. No tricks can be played on me. 😀

  • @jadebezuidenhout5566
    @jadebezuidenhout5566 10 หลายเดือนก่อน +1

    🙌

    • @GingerMathematician
      @GingerMathematician  10 หลายเดือนก่อน +2

      Keep going!

    • @jadebezuidenhout5566
      @jadebezuidenhout5566 10 หลายเดือนก่อน +1

      @@GingerMathematician Most definitely Mr Gower, many thanks to you sir 😊

  • @mehersundrani8390
    @mehersundrani8390 3 หลายเดือนก่อน +1

    love u

  • @AtharvMishra-v5s
    @AtharvMishra-v5s 11 หลายเดือนก่อน +1

    hah, i didnt fell for the trick, i knew it was 163.9375 only at 23:25

  • @kheprintui9521
    @kheprintui9521 ปีที่แล้ว +1

    I fell for the trick 😂

  • @AbdihafidBurhan
    @AbdihafidBurhan 9 หลายเดือนก่อน +1

    I didn't feel for the trick 😂😂

  • @Marie-NoelleSefakorArkutu
    @Marie-NoelleSefakorArkutu 4 หลายเดือนก่อน

    Actually didn’t fall for the trick

  • @LuluKisima
    @LuluKisima 4 หลายเดือนก่อน +1

    Didn't fall for it

  • @Rebounds88
    @Rebounds88 10 หลายเดือนก่อน +1

    W video

  • @LuluKisima
    @LuluKisima 4 หลายเดือนก่อน +1

    Didn't fall for it