11 Plus Maths – Preparation and Information
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northernsoul
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by northernsoul »
Oh no.... Can anyone please help? DC is trying to complete homework and I haven't a clue.....
How do you simplify:
4a + 3b - 2c + 3a -b + c =
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northernsoul
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by northernsoul »
sorry... panic over... DC knows what she's doing even if I haven't a clue!
phew.
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moved
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by moved »
For the future you collect all the like terms together:
4a + 3b - 2c + 3a -b + c =
4a + 3a = 7a
3b - b = 2b
-2c + c = -c
So the answer would be
7a + 2b -c
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northernsoul
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by northernsoul »
Thanks moved! Must find some time to get my head around algebra
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moved
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by moved »
Using the letters for objects does help.
4 aardvarks + 3 aardvarks
3 beetles - 1 beetle
-2 crabs + 1 crab
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Chelmsford mum
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by Chelmsford mum »
moved wrote:Using the letters for objects does help.
4 aardvarks + 3 aardvarks
3 beetles - 1 beetle
-2 crabs + 1 crab
I like that.
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dadofkent
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by dadofkent »
Chelmsford mum wrote:moved wrote:Using the letters for objects does help.
4 aardvarks + 3 aardvarks
3 beetles - 1 beetle
-2 crabs + 1 crab
I like that.
Or try apples bananas carrots etc. Tescos dont sell aardvarks. And they stay where they are put on the table.
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doodles
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by doodles »
Dad of Kent and Moved - why oh why weren't you my maths teachers! It would have been so much more fun.
Knowledge is knowing that a tomato is a fruit, wisdom is not putting it in a fruit salad !