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

You are not logged in.

## #726 2013-03-21 04:10:10

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

40/100 am I right?

Offline

## #727 2013-03-21 04:16:29

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

Right there are two approaches you could use. You could cancel down the fraction which I suggest you do in this case.

You could also do the division  40 divided by 100 to get a decimal which I would do if I were doing a problem like
that and allowed to use a calculator. However most maths students can do this in their head because as it happens
the numbers are nice round figures.

I suggest you cancel down the fraction first. However you may wish to look at what the calculator gives you as well.

Offline

## #728 2013-03-21 04:19:37

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

40/100 10/10 s0 it = 1 am i right?

Offline

## #729 2013-03-21 04:21:06

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

No that is not correct.

However the number ten could be used to cancel. Try dividing top and bottom by 10.

Offline

## #730 2013-03-21 04:23:31

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

what should i do then?

Offline

## #731 2013-03-21 04:24:58

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

Right. Copy and complete the following:

40 divided by 10 is ...................

100 divided by 10 is .................

Offline

## #732 2013-03-21 04:27:23

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

40 /10 = 4
100/10 = 10 am i right

Offline

## #733 2013-03-21 04:28:53

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

Now what could you cancel the fraction  (40/100)  to ?

Can it be cancelled any further?

Are the numbers both even?

Offline

## #734 2013-03-21 04:31:17

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

yes 20 goes into 100 5 times and into 40 2 so you get 2/5 am i right?

Offline

## #735 2013-03-21 04:33:27

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

Yes. That is correct.

Now let us go back to the original question:  Calculate  40 %  of  60.

Can you see what to do next ?

Offline

## #736 2013-03-21 04:34:43

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

can you see what to do next? no i carn't

Offline

## #737 2013-03-21 04:35:58

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

We have to multiply the fraction that you gave in post #734  by 60.

I will give you a minute or two to try that.

Offline

## #738 2013-03-21 04:38:30

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

not sure?

Offline

## #739 2013-03-21 04:42:13

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

I would do the following:

(60 x 2) divided by 5.

For speed you may wish to use your calculator. However because the numbers are quite round you may be expected

Offline

## #740 2013-03-21 04:42:48

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

i am finding it hard to do could you leave me some to do for tomorrow and i will come back on here at 2.00pm tomorrow if ok with you?

Offline

## #741 2013-03-21 04:45:52

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

I will not be able to do that at that time tomorrow. How about in the evening ?

Some more questions for you to try:

(1) Calculate  70 % of 90
(2) Calculate  30 % of 70
(3) Calculate  20 % of 150
(4) Calculate  10 % of 170

Offline

## #742 2013-03-21 04:47:54

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

ok what about 7.00pm then any good?

Offline

## #743 2013-03-21 04:48:42

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

Yes that would be a better time.

Offline

## #744 2013-03-21 04:49:29

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

see you then? by

Offline

## #745 2013-03-21 11:13:29

Mathegocart
Member
Registered: 2012-04-29
Posts: 1,880

### Re: Mandy Jane's Corner

Steve,thanks.
1.whats 90% of 190
2.80% of 150
3. 20% of 56

The integral of hope is reality.

Offline

## #746 2013-03-22 05:03:04

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

Hi mandy here just wondering how people think I am doing with my maths so far?  Leave me a message I will get back soon?

Offline

## #747 2013-03-22 05:44:33

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

Hi steveb mandy here.  Just to say sorry I can't make it on here tonight will you be around tomorrow? Send me an email please to let me know?

Offline

## #748 2013-03-23 01:59:43

SteveB
Member
Registered: 2013-03-07
Posts: 595

### Re: Mandy Jane's Corner

Last edited by SteveB (2013-03-23 08:08:17)

Offline

## #749 2013-03-23 08:23:01

SteveB
Member
Registered: 2013-03-07
Posts: 595

Offline

## #750 2013-03-25 02:33:02

mandy jane
Member
Registered: 2010-09-23
Posts: 1,162

### Re: Mandy Jane's Corner

Hi steveb mandy here. 70 percent of 90 is

Last edited by mandy jane (2013-03-25 02:33:42)

Offline