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

You are not logged in.

- Topics: Active | Unanswered

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

so 16 has no mistake ???????

One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

You think the conversion is correct?

To change from micro-meters to meters you must divide by 1000 000

To change into cm, you must x by 100

What does that give you?

Bob

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

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

it gives me 1.3478

One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

Good. So what letter will you pick?

Bob

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

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

i would chose A

One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

yayyy 4 more left amm for 17

98kg= 216.053 lb

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

A is correct for 16.

That conversion kg to lb is correct but ...

17? The one I'm looking at has kL and liters

Bob

*Last edited by bob bundy (2011-07-06 10:57:36)*

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

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

so this has no mistakes

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

If we are talking about converting 98 kiloLiters into Liters then it has a mistake.

Which is bigger? one kL or one Liter?

Bob

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

kiloliter is bigger then a liter

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

its 98000

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

so d is my answer ?

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

That's correct. Well done. You got there.

I'm going to log off now. It's past midnight here in the Uk.

Back in the morning.

Bob

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

ok thanx alot am logging of 2

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

for #18 -f

for 19-f

for 20-a

18. Estimate the length of a pen in centimeters.

A about 1 cm

B about 2 cm

C about 5 cm

D about 13 cm

E about 23 cm

F about 30 cm

19. Estimate the amount of juice in a typical orange juice carton in liters.

A about 8 liters

B about 5 liters

C about 4 liters

D about 3.5 liters

E about 2 liters

F about .5 liters

20. Estimate the weight of a small can of soup in grams.

A about 30 grams

B about 500 grams

C about 250 grams

D about 325 grams

E about 750 grams

F about 100 grams

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

hi zee-f,

How are you today?

Ready for some more math?

edit: Just checking your answers.

Bob

*Last edited by bob bundy (2011-07-07 04:38:52)*

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

Answers:

I'm guessing you are more used to feet, inches, gallons etc.

18 f = 30 cm That's about a foot! What sort of pen are you using?

19 f Yes that look good to me.

20 a 30 grams is just over one ounce. That's too low.

Bob

*Last edited by bob bundy (2011-07-07 04:42:35)*

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

hhhhhh ok so for 18 ill go with b and for 20 F

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

i dont see the point of estimating these

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

18 b. Now you have gone to the other extreme.

2 cm is less than an inch. You couldn't hold a pen that small.

20 f. I think I'd accept that as it says a small can.

While you were answering I did a search online for soup. It was harder than I thought. One site wanted to sell me a picture of Andy Walhol's "Can of Soup" picture! Eventually found a medium size can of Heinz tomato at 400g. So 100g may still be a bit small.

Why do the estimating? Just so you get a 'feel' for how big a measurement is. Do you usually use pounds and ounces, feet and inches, pints and gallons? I can give you some conversion factors.

Bob

*Last edited by bob bundy (2011-07-07 04:56:30)*

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

so would 500g be ok

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

for 18 d is good ?

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,378

500g

I suppose so. If I'd been making up the choices I'd have put them further apart so one answer was obviously the one. 100g, 250g, 350g, 500g, and even 750g seem possible to me, depending on the size of can.

18d I like.

I've just measured my pen and that's what it is!

Why do the estimating? Just so you get a 'feel' for how big a measurement is. Do you usually use pounds and ounces, feet and inches, pints and gallons? I can give you some conversion factors.

Bob

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

yup ill be happy to do conversion factors

Offline

**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

so i submitted my work i got 5 incorrect

1-c incorrect

14-e

17-d

19-f

20-f

i need help getting the correct answer and explain the new answer plzzz

Offline