The 5 Hardest Bounds Exam Style Questions | Grade 9 Series | GCSE Math Tutor

A video revising the techniques and strategies for looking at difficult bounds calculations (Higher Only).

This video is part of the Bounds module in GCSE maths, see my other videos below to continue with the series.

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🔹 Practice the questions
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[mehar]

Hello! :) Thank you so much for making these videos, they help me cover all of the topics really well and in depth. I have my maths retake next month, so hope it all goes well! Also, this may be weird but, your voice is really calming to listen to and somehow increases my focus lol :P

[gracetetley]

Hah that last question there got me caught out on the upper bound for 16.0! I had put 16.5 instead of 16.05. Thanks for these amazing videos! For some reason in the year I hadn't studied this properly, so these videos are great to catch up.

[MKhan-qelp]

mate nice one did a revision session just today on bounds and indices.then this beauty came up.i would say that it solidified my understanding.

[GCSEALevelMaths]

Good video sir good job keep up these videos. They’re super clear!!

[BecomingTitus]

thank you, i hope i am no longer 1 mark away from a 9

[marya]

Loved your video, but could you please make a video on changing ratios with simultaneous equations. Please as i have a test coming up.

[jamsi]

hi, how do you know what to round it to when it says something like 3 s.f. because i always do it wrong, for example i made the upper bound for the first question 12.505 instead of 12.55

[masahalsabbagh]

Hello, thank you so much
For the last question it said that the density should be in g/cm^3 and our final answer was in g/mm^3

[AliciaBarista]

hi, in the last question, all the length, width and height measures are in mm but at the start of the question it says that the density is g/cm cubed, so wouldnt you have to convert the mm to cm?

[CorbinSmith-yfwd]

It seems like it would take a long time in an exam to write out all of these long decimal numbers, does this have to be done??

[jeonswift]

at 19:43, would it be accepted if i wrote my answer as 3 km/min, and my reason being 1 significant figure?

[virtualplayground]

Hi there, I wanted to ask if, for the questions with averages, you could find the mean of the upper and lower bound as a correct answer?

[satyaprakash]

On the fourth question Don't we have to do for the upper bound 486.5/3 hours which is 161.71744515, not 2.69 do we have to calculate hertz? Because for the speed calculation questions before you used to calculate on hertz.

[BimpeKuton]

Pls make more videos on a level maths I’m doing edexel year 1 pure maths and love your teaching style would be very helpful if you made more of those types of videos

[rehankhalil]

Hello your videos are really useful, thank you. please could you exam walkthrough for June and Nov 2018 higher edexcel

[sadikurrahman]

I have mocks coming up end of November. What paper do you think will be done for that?

[jjoyi]

hello sir do you link all these grade 9 questions and 7-9 grade questions to each topic playlist. Also thanks sir im starting today to write notes for all you videos for my mocks in December. Do you think I can finish all my notes by October.
Thanks

[xyth]

I have a question, at 3:37 for the first q, wouldn't the max of side lengths be 12.54cm because 12.55 is not included because of the < sign?

[kurtwilson]

Hi
On the first question when you select 12.55 cm as the largest possible length, would it not be 12.54 as I thought 12.55 would round up to 12.6?
Thank you

[seducedol]

Hey my only question is for the last question how is the LB also 0.43? It was 0.42 so I'm just confused on how it ended up being 0.43