JotCast | Home Learning - LbQ Support

Home Learning - LbQ Support

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Mr Warbrick

9:54

This is down to personal choice. They're both correct ways of working out the area - which one do you think is best and then use that method to calculate the area.

Olivia

9:55

Ok…

Chelsea😊

9:56

1050?

Mr Warbrick

9:57

It is! So add that to your 300 and you've got most of the space. Then you just need to work out the area of the porch. Amelia worked out that the missing side is 20cm so that's 20xx = ? then add that on to the rest of house.

Chelsea😊

9:59

1370?

Mr Warbrick

9:59

Not quite, you haven't added the area of the porch on. The area of the porch is 20 x 6 = ?

Chelsea😊

10:00

1470?

Mr Warbrick

10:00

Good!

Amelia ❤

10:03

I need help with Q28 because I got to the point where I figure out that the whole area is 325 should I take away the area from the larger shape from the whole area or not?

Mr Warbrick

10:05

You could use that approach, yes. That would give you the area of the small piece then you'd need to use that information to work out the width of it.

Amelia ❤

10:05

How would I do that?

Mr Warbrick

10:06

Well ,w work out the area of the small piece first then I'll talk you through it with the numbers available.

Amelia ❤

10:06

70 is the area of the small piece

Mr Warbrick

10:07

Not quite, the whole paper is 285 (15x19), then take 255 from that.

Chelsea😊

10:07

I need help with 28

Mr Warbrick

10:08

This is what I'm working with Amelia on at the moment so have a read through the last few messages and see if that helps.

Lewis S😎🥳

10:08

i need help on 28

Mr Warbrick

10:08

This is what I'm working with Amelia on at the moment so have a read through the last few messages and see if that helps.

Amelia ❤

10:08

I thought that the whole piece was 325?

Mr Warbrick

10:08

Not quite, 15 x 19 = 285

Mr Warbrick

10:08

So the area of the small piece must be?

Kacie

10:09

Morning everyone!

Mr Warbrick

10:09

Morning Kacie!

Chelsea😊

10:09

I dont get it?

Mr Warbrick

10:10

We're trying to work out the area of the small piece of paper by taking the area of the large piece (255) from the whole area (285)

Amelia ❤

10:09

ok so 285 - 255 = 230?

Mr Warbrick

10:09

230?

Amelia ❤

10:10

I think?

Mr Warbrick

10:10

Not quite, 285 - 255 can't equal 230 as I have 2 hundreds and I'm losing 2 hundreds

Chelsea😊

10:11

Isnt it 30

Mr Warbrick

10:11

It is!

Mr Warbrick

10:11

So, the area of the small piece is 30. One side of it is 15cm. So I know that the area of the small piece of paper is 30 = 15 x ?

And the '?' is my missing width

Amelia ❤

10:11

oh right just 30 then

Kacie🦄

10:11

how Is everyone?

Mr Warbrick

10:12

Good thanks Kacie! Yourself?

Amelia ❤

10:12

Mr Warbrick

10:12

Well done!

Lewis S😎🥳

10:12

i still dont get it

Mr Warbrick

10:12

So we've worked out that the small piece of paper has as area of 30

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