# What is a quarter of 100?

Discussion in 'Mathematics' started by Tandy, Jan 24, 2011.

1. ### TandyNew commenter

"Can you tell me what a quarter of 100 is, Charlie?"
"15"
"Hold on. Think carefully for a moment. A quarter of 100"
"It's 15, Sir"
"Let's think about how to find a quarter. Can you tell me how to do that?"
"er..."
"Maybe think about some other fractions you know. What would a half be?"
"30"
"Why do you think that?"
"It's always 30. And a quarter is always 15"
"Can you explain why that is"
"Because when it is quarter past, your watch always says 15"

Bless 'em

2. ### TandyNew commenter

"Can you tell me what a quarter of 100 is, Charlie?"
"15"
"Hold on. Think carefully for a moment. A quarter of 100"
"It's 15, Sir"
"Let's think about how to find a quarter. Can you tell me how to do that?"
"er..."
"Maybe think about some other fractions you know. What would a half be?"
"30"
"Why do you think that?"
"It's always 30. And a quarter is always 15"
"Can you explain why that is"
"Because when it is quarter past, your watch always says 15"

Bless 'em

3. ### ResourceFinder

Another vote for decimalised time then

4. ### Andrew JeffreyNew commenter

I think it might be 25. But I could be wrong. My watch says it's 3.

5. ### bolzanoweierstrass

My computer thinks it is 1

6. ### ResourceFinder

Now Andrew you are just being silly ... You know that there are 60 minutes in an hour so your watch is saying that a quarter of 60 = 3

7. ### DMNew commenter

I'm no expert but I understand a quart fits snugly into a pint pot.

8. ### GodOfBiscuitsNew commenter

So the right answer is 25 o'clock?

9. ### Betamale

ohh stop moaning, thats success. Some of mine stumble at the first hurdle. "wotz an undred?"
After explaining its the amount of money you collect from the post office for having 3 children on benefits each week means the maths becomes easier.
1/4 doesnt exist though
One exists as its 1 quid for a scratch card, 6 does as as thats the cost of a pack of fags (although asking how many there are in the packet is another matter)
Ohhh before I forget, Number 43, 72 and 27 do to as they are the dishes they have delivered every evening from the local chinese using their undred
I have started teaching imaginary numbers to my year 9s. We have started with 10,11 and 12 this week.

11. ### Betamale

I gave them a fantasy &pound;1000 to spend on kitting out a personal learning zone and as they claculated they had no idea of what taking away &pound;11 from a grand was....
I know I am grumpty but I find that strange given they had a HTU chart

12. ### DMNew commenter

Not entirely on topic but possibly my all time favourite classroom exchange went like this:
DM: "What is the square of one hundred?"
Long silence.
DM: "Don't tell her! She'll work it out."
Long silence.
Student: "A squndred?"

13. ### TandyNew commenter

hahaha love it! I might have to nick that for the new book