ChatterBank1 min ago
Kids maths home work
12 Answers
Hate to admit,I don't know how to do this.
For 10 year old
This type of question
Tom has a cd collection which he has sorted into three categories : classic, rock and pop. He has four times as many pop as classic, and three times as many rock as classical . Altogether Tom has 80 CDs
How many classical
How many rock
How many pop
For 10 year old
This type of question
Tom has a cd collection which he has sorted into three categories : classic, rock and pop. He has four times as many pop as classic, and three times as many rock as classical . Altogether Tom has 80 CDs
How many classical
How many rock
How many pop
Answers
probably the wrong way but:
classical is the one thats multiplied.
suggest classical is 1, then pop is 4x1 and rock is 3x1 (total 8)
80/ 8= 10
so multiply up until you get total 80. classical 1x10 pop 4x10 rock 3x10.
total 80
suggest classical is 1, then pop is 4x1 and rock is 3x1 (total 8)
08:53 Tue 18th Oct 2011
-- answer removed --
Yes, these answers are opf course correct.
One way to look at it is to imagine his CDs in equal size boxes and he has 4 boxes of pop, 3 boxes of rock and one box of classical. That's 8 boxes in total. He has 80 CDs in total so each of the boxes 10 CDs.
So that's 40, 30, 10. That's exactly what redcrx did and I'm sure the others did it pretty much the same way.
One way to look at it is to imagine his CDs in equal size boxes and he has 4 boxes of pop, 3 boxes of rock and one box of classical. That's 8 boxes in total. He has 80 CDs in total so each of the boxes 10 CDs.
So that's 40, 30, 10. That's exactly what redcrx did and I'm sure the others did it pretty much the same way.
Children of 10 would not normally be expected to us algebra. This will have arisen as ratio problem.
One way for many pupils to work this out is to use a pile of 80 coins and sort them into piles: 4 for pop, 3 for rock, 1 for classical; again 4 for pop, 3 for rock, 1 for clasical... and so on until all the coins have gone.
Then when they have mastered that approach ask them to see if they can find a quicker way
One way for many pupils to work this out is to use a pile of 80 coins and sort them into piles: 4 for pop, 3 for rock, 1 for classical; again 4 for pop, 3 for rock, 1 for clasical... and so on until all the coins have gone.
Then when they have mastered that approach ask them to see if they can find a quicker way