addition using partitioning
Download
Skip this Video
Download Presentation
ADDITION USING PARTITIONING

Loading in 2 Seconds...

play fullscreen
1 / 5

ADDITION USING PARTITIONING - PowerPoint PPT Presentation


  • 338 Views
  • Uploaded on

ADDITION USING PARTITIONING. The following questions are multiple choice.  When working out these questions mentally you must use the following method. e.g.  48 + 69 = ? 40 + 60 = 100 8 + 9 = 17 100 + 17 = 117 Therefore 48 + 69 = 117 By Auveen Twomey.

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 'ADDITION USING PARTITIONING' - nuri


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
addition using partitioning

ADDITION USING PARTITIONING

The following questions are multiple choice.  When working out these questions mentally you must use the following method.

e.g.  48 + 69 = ?40 + 60 = 1008 + 9 = 17100 + 17 = 117Therefore 48 + 69 = 117

By Auveen Twomey

slide2

Task 1Use the method shown previously to answer the following multiple choice questions. Can you explain to a partner how you partitioned each number?

1. 64 + 82 = A. 145 B. 146 C. 156

2. 37 + 59 = A. 96 B. 82 C. 94

3. 41 + 74 = A. 85 B. 115 C. 105

4. 89 + 62 = A. 146 B. 151 C. 153

5. 37 + 96 = A. 131 B. 132 C. 133

answers to task 1
Answers to Task 1

1. 64 + 82 = 146

60 + 80 = 140

4 + 2 = 6

140 + 6 = 146

2. 37 + 59 = 96

30 + 50 = 80

7 + 9 = 16

80 + 16 = 96

3. 41 + 74 = 115

40 + 70 = 110

1 + 4 = 5

110 + 5 = 115

answers to task 1 continued
Answers to Task 1 (continued)

4. 89 + 62 = 151

80 + 60 = 140

9 + 2 = 11

140 + 11 = 151

5. 37 + 96 = 133

30 + 90 = 120

7 + 6 = 13

120 + 13 = 133

task 2
Task 2
  • Write 4 calculations and work out the answers.
  • Then pass them to your partner (without the answers) to complete.
  • When they have finished mark their work. Remember they must use the PARTITIONING method!
ad