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

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

ok thanks for that. I will try not to worry about things so much and just get on with life ok? sound good to you? send message back befor I go please?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,363

Yes, there is no point in worrying. Just makes wrinkles. I do not want you to change, just be happy with what you are.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

ok thanks for that. I am glad you don't what me to change. It has made me very happy to hear that thank's send me message and I will answer it later or tomorrow ok?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,363

Hi;

That is okay, answer it when you can.

It has made me very happy to hear that thank's

You did say you wanted to be cheered up.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi avatar or ganesh. Mandy jane here just wondered if we have spocken or not? send me a message here and let me know? like now please?

*Last edited by mandy jane (2012-06-11 02:41:52)*

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi mandy jane here. Dose anyone know how to use a Canon F-718S/F-718SGA Scientific Calculator?If so send me a message on how or where to go please?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

hi Mandy

You have the user manual I hope.

Unfortunately, the manual is not available on the Canon website, so it will be harder to advise you.

But it looks much like most scientific calculators so I should be able to help you as and when you need it.

What colour is it? I'll make a picture of one so I can point at the right buttons.

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi bob budy it is lime green. Do you what me to stay on here or go to other site? send message and let me know please?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

Lime green it is then.

Have you got the manual?

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi yes it is lime green and i have the manual. what now then?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

I've made a picture of your calculator. It started black but I've changed it to green so it looks like yours.

When you have a query about how to use it, I'll be able to show you in a picture which buttons to press.

Because I don't have a manual, I may have to guess sometimes, so it might take more than one post to get there, but I'm sure we will.

Do you want to try something on the calculator?

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

yes can we try something on the calculator then? send it to me now?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

OK, let's try squaring numbers.

eg 3 squared means 3 x 3

But we will try the square it button.

In the picture I've shown which button this is.

So do this

What answer did you get?

Bob

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

my answer was 9 is that right? send next quistion then?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

Correct.

let's do all the square numbers from 1², 2², ........, up to 12².

Use the x² button for these.

Post back the 12 answers.

(I'm trying to do the washing up, then back to the computer to answer your next post, so don't think I've gone if you have a longer wait for my reply.)

Bob

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

hi my answers are 1 , 4 , 9 , 16 , 25 , 36 , 49 , 64 , 81 , 100 , 121 , 144 am i right or not? how do you get the little 2 on the computer then above the big number?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

Excellent! All correct.

I have made a screen shot to answer your question about the little 2.

Now let's try doing some square roots.

The square root button does the opposite of the square button.

eg √144 = 12.

Try it like this.

I'm pretty sure that on your calculator you have to press the √ button first, then 144, then =

Do you get 12?

If so, try square rooting 144, 121, 100, 81, ......1 to see if you get the original numbers back.

Bob

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

my answeres are 12 , 11 , 10 , 9 , 8 , 7 , 6 , 5 , 4 , 3 , 2 , 1 am i right? what is next? i carn't get the little 2 as you show why?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

Well, you know you are right don't you? Squaring a square rooting are opposites.

Try this.

Choose any number you like and square it.

Start with that answer and square root it.

You should be back to where you started.

Tell me what number you chose, and what it was when squared, and what that became when square rooted.

The symbols at the top of the page can be copied.

So highlight the ² , then press CTRL and C together to copy.

Go to your text where you want the symbol and press CTRL and V together to paste the ²

You can also copy it from this post in the same way.

Bob

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi my number was 16=256 256=16 how do you get the squareroot button on the computer please?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

It's the 4th symbol in the list: Useful symbols: ÷ × ½ √

Do you want to try a new button on your calculator?

Bob

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi bob i think i will leave it for now as i have done a lot of maths today and trying to rember it all is hard for me ok? can you send me some to do for tomorrow please? It has been very wet here has it been wet at yours? send message now please?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

Yes, we have had rain for most of the day. I'm watching Springwatch. The reserve in Wales has been devastated by the rain.

So what work still needs to be completed?

(1) Do all corrections in your assignment Q1 and Q2.

(2) Do that fractions question.

(3) Check out the prime number lists. Are the two lists the same?

One last question: How are you with times tables?

Bob

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**mandy jane****Member**- Registered: 2010-09-23
- Posts: 1,003

Hi bob ok will do all that for you. My time tables are not to bard but I have to think about them. If someone said what are 6x7 I would have to go thought my 6 time tables to find out the answers ok? send message back befor I leave ok?

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

I have a program that tests you on your tables. When I have got pupils to use it regularly they gradually get better and better.

I think it will help you as you will be able to do long multiplication more easily.

Bob

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