Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#6951 Re: Maths Is Fun - Suggestions and Comments » Our New Forum » 2005-02-01 22:28:34

Hiya Rocky, this is how I worked out the solution:


Lucy........Crunchies....Rabbit......Tennis..........Lilac......Maldives
Jo...........Wispa Bites...Puppy.....Horse Riding..Blue......Tobago
Hannah....Dairy Milk...             ..Ten Pin..........Pink.......Florida
Jessica.....Milky Bars...Horse......Skiing............Green...Australia
Georgina..Boost..........Hamster..Swimming......Purple...Canada


So, that would mean that Hannah must own the Croc !!

#6952 Re: Jokes » Jokes » 2005-02-01 16:03:36

Got a good joke? Share it with everybody, just keep it clean.

#6953 Re: Help Me ! » population problem » 2005-01-29 09:16:01

Well, how many unfortunate one-legged citizens in town? 5% of 20,000, which is 5 x 20,000 / 100 = 100,000/100 = 1,000 of them.

And therefore there are 19,000 with two legs.

If half go barefoot then there would be 19,000/2 who wear two sandals and 1,000 who wear one sandal.

19,000/2 x 2 + 1000/2 x 1 = 19,000 + 500 = 19,500.

Is this right?

#6954 Re: Help Me ! » Maths!!!! » 2005-01-27 08:48:14

That's a hard question to answer, Amy.

I think it has a lot to do with HOW you learn it.

I know myself that I can pick up some books, and can't even get half way through a page, whereas other books are easy to read on the SAME subject!

In other words, it may help you to look around for other ways to learn.

Maybe a different teacher at school, one who you understand well, could explain some things better. Or perhaps your parents could afford a tutor. Or just try a sample of different books from the library or bookstore.

And you could also go BACK to some of your earlier textbooks and try to figure out WHEN it first became really hard, there may have been some concepts you missed.

Because maths is all about building up concepts, and if you miss just one concept you can be in trouble.

When studying maths, you need to take it slow, and understand EACH STEP, and don't hesitate to ask questions. You will, after a while, start to understand it more clearly, and then you will want to do more and more and hopefully surprise yourself.

And don't hesitate to ask any specific questions here, ok?

#6955 Re: Help Me ! » Plane Shapes » 2005-01-26 16:40:36

Not being able to see the sheet, I can only imagine what is required.

It does say "Write a title", so perhaps just write "hexagons" for the first group.

The next group are all quadrilaterals.

The next group are quadrilaterals and a hexagon, so perhaps polygon is the only answer.

But then the next group are all polygons.

Does any group all have equal sides, because then you could title them "equilaterals"

Unless you are supposed to classify within each group, in which case it may simply be by number of sides, because everythin you mentioned has 3, 4 or 5 sides only.

UPDATE: Skip down to http://www.mathsisfun.com/forum/viewtop … 944#p42944 for a possible answer

#6956 Re: Help Me ! » Fractions » 2005-01-26 08:31:43

Well, 16% is really 16/100 ("percent" means "per century" or "per 100"), so:

16/100 * 40 = 16 * 40 / 100  (putting the " / 100 " last)

and: 16 * 40 / 100 = 640 / 100  (16*40=640 of course)

and: 640 / 100 = 6.4

I often find this the easiest way - do the mulitpliying first as if the "%" wasn't there, then finish up by dividing the result by 100 (which is just moving the decimal point)

#6957 Re: Help Me ! » Number range » 2005-01-25 08:14:37

OK, Thomas, the first step is to find the Largest and Smallest number.

Largest = 12
Smallest = 4

Then the range is just the difference between Largest and Smallest

So, 12 - 4 = 8  !!

So the Range is 8

#6958 Re: Guestbook » The site » 2005-01-25 08:06:24

well, thank you so much

#6959 Re: Help Me ! » Maths!!!! » 2005-01-23 12:01:49

Angles start at acute, then when they reach 90 degrees it is called a "right angle", more than 90 is obtuse, until 180 degrees which is called a "straight angle".

Note: it must be *exactly* 90 degrees to be a right angle, and it must be *exactly* 180 degrees to be a straight angle.

#6960 Re: Help Me ! » Maths!!!! » 2005-01-23 11:52:36

an angle over 90 Degrees is simply called an "obtuse angle"

#6961 Re: Help Me ! » Maths!!!! » 2005-01-23 08:06:27

2 fifths is 2/5 ...

Get a pizza, slice it into 5 pieces, eat two of them and you have eaten 2 fifths. You should also not be hungry any more.

2 fifths is also 4/10ths (or 0.4 in decimal)  ... how?

If before eating your 2 slices of pizza, you had cut each of the 5 slices into half, you would have been looking at 10 smaller slices, and you would then eat 4 of these smaller slices.

So, cutting the pizza into 10 slices and eating 4 is the same as cutting it into 5 slices and eating 2.

#6962 Maths Is Fun - Suggestions and Comments » Our New Forum » 2005-01-21 10:40:38

MathsIsFun
Replies: 145

We welcome all suggestions, including what topics you would like here, improvements to the website, ... basically anything useful.

#6963 Maths Teaching Resources » Welcome » 2005-01-21 09:48:19

MathsIsFun
Replies: 151

A Big Welcome from Maths Is Fun. We would all love to hear from you, just be nice to everyone, OK?

Board footer

Powered by FluxBB