counting on n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Counting on PowerPoint Presentation
Download Presentation
Counting on

Loading in 2 Seconds...

play fullscreen
1 / 7

Counting on - PowerPoint PPT Presentation


  • 78 Views
  • Uploaded on

Counting on. Example:. 27+40 =. 67. +10. +10. +10. +10. 27. 37. 47. 57. 67. Addition. 2-digit number with a multiple of ten. Example:. 20. 40. 7. 27 + 40 =. +. +. Addition. 27. 60. =. +. =. 67. 20. 7. 2-digit number with a multiple of ten. Example:. 50. 80. 3.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Counting on' - raanan


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
counting on

Counting on

Example:

27+40 =

67

+10

+10

+10

+10

27

37

47

57

67

Addition

2 digit number with a multiple of ten

2-digit number with a multiple of ten

Example:

20

40

7

27 + 40 =

+

+

Addition

27

60

=

+

=

67

20

7

2 digit number with a multiple of ten1

2-digit number with a multiple of ten

Example:

50

80

3

53 + 80 =

+

+

Addition

53

130

=

+

=

133

50

3

2 digit number with a multiple of ten2

2-digit number with a multiple of ten

Example:

90

80

7

97 + 80 =

+

+

Addition

97

170

=

+

=

177

90

7

slide5

Practical Application

$2 each

Siti bought the items listed below.

$4 each

$3 each

Siti paid the shopkeeper $100.00.

How much change will she receive?

=___________

slide6

2-digit number with a multiple of ten

  • Add

$16 + $4 + $15 =

$10 + $6 + $4 + $10 + $5

= $20 + $10 +

$5

$10 $6

$10 $5

= $35

+10

+1

+1

+1

+1

10

20

9

10

6

7

8

what is the total cost of two toy cars below
What is the total cost of two toy cars below?

B$447 $530

$447

= $400 + $40 + $7

$530

= $500 + $30

$447 + $530 =

$400 + $500 + $40 + $30 +

$7

= $ 900 + $70 +

= B$977