WALT
This presentation is the property of its rightful owner.
Sponsored Links
1 / 21

WALT PowerPoint PPT Presentation


  • 107 Views
  • Uploaded on
  • Presentation posted in: General

WALT. Partition Order Round whole numbers and decimals with up to 2 d.p. Partitioning. Every number sits in it’s own column. M100 Th 10 th ThHTU 7 9 0 4 6 2 700 000 + 90 000 + 400 + 60 + 2 = 790 462. Question 1 Partitioning. 7 9 0 4 6 2 In your jotter show the value of: 6

Download Presentation

WALT

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Walt

WALT

Partition

Order

Round

whole numbers and

decimals with up to 2 d.p.


Partitioning

Partitioning

Every number sits in it’s own column.

M100Th10thThHTU

790462

700 000 + 90 000 + 400 + 60 + 2 = 790 462


Question 1 partitioning

Question 1 Partitioning

790462

In your jotter show the value of:

  • 6

  • 9

  • 0

  • 2

  • 7

  • 4


Partitioning1

Partitioning

ANSWERS

  • 60

  • 90 000

  • 0

  • 400

  • 7 000 000

  • 400


Partitioning with decimals h t u 1 10 1 100

Partitioning with decimalsHTU.1/101/100

7.9

7.90

These two numbers are the same. Zeros written at the end of the complete number after the decimal point do not alter the value of the whole number.

You will need to remember this for the ordering activity.


Partitioning with decimals h t u 1 10 1 1001

Partitioning with decimalsHTU.1/101/100

304.15

In your jotter show the value of:

  • 0

  • 4

  • 3

  • 1

  • 5


Partitioning with decimals

Partitioning with decimals

ANSWERS

  • 0

  • 4 units

  • 3 hundreds

  • 1 tenth

  • 5 hundredths


Ordering

Ordering

Once you know the value of each digit, you can put numbers in order according to their size.

When working with whole numbers, put them in order by lining up the units column.


Ordering1

Ordering

When working with whole numbers, put them in order by lining up the units column.

263

6 032

2 630

32

Try doing this in your jotter.

They should now look like this


Ordering2

263

6 032

2 630

32

Now you can easily see that the order is

32

263

2 630

6 032

Ordering


Ordering3

Ordering

In your jotter write these numbers in order starting with the smallest.

  • 7242974972

    ANSWER

    72497229744927


Ordering4

Ordering

When you use decimal numbers, it can be a bit more complicated to begin with.

First make sure that all the numbers have the same number of digits after the decimal point.

23.43.4243.2324

These can all be written with 2 decimal points

23.403.4243.20324.00


Ordering5

If you then write the numbers in a vertical list with the decimal points lined up you can easily see the order.

23.40

3.42

43.20

324.00

Written in order from smallest to largest the numbers should read:

3.42

23.40

43.20

324.00

Ordering


Ordering6

In your jotter write these decimal numbers in order starting with the largest.

6.7887678.68.67

ANSWER

876

78.6

8.67

6.78

Ordering


Rounding

Rounding

Rounded numbers are used all the time in every day life.

The number of marbles in a bag can be rounded to the nearest 10.


Rounding1

Rounding

The number of sheep in a flock

could be rounded to the nearest 100


Rounding2

Rounding

The number of runners in the London Marathon

can be rounded to

the nearest 1000


Rounding3

On your whiteboard, round these numbers to the nearest 10

243

3892

456

7295

5999

ANSWERS

240

3890

460

7300

6000

Rounding


Rounding decimals

Decimal numbers can be rounded to the nearest whole number, especially in the case of money or measure.

£1.99 can be rounded to £2

4 m 35 cm can be rounded to 4 m

Rounding decimals


Rounding decimals1

In your jotter, round these amounts of money to the nearest pound.

£4.99

£8.42

£3.67

£9.75

£12.50

Answers

£5

£8

£4

£10

£13

Rounding decimals


Plenary

Plenary

You have been learning to partition, order and round whole numbers and decimals with up to 2 d.p.

Do you understand what each of these words mean?

Can you suggest examples from real life where it might be useful to be able to partition, order or round large numbers or numbers involving decimals?


  • Login