logging in or signing up decimals add subtract Malbern Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 9739 Category: Product Traini.. License: All Rights Reserved Like it (6) Dislike it (0) Added: June 15, 2007 This Presentation is Public Favorites: 7 Presentation Description No description available. Comments Posting comment... By: apolbustamante (9 month(s) ago) Great powerpoint presentation! I would like to use this in my class. Can you send me the ppt presentation on addition and subtraction of decimal on my email? email@example.com thank you! Saving..... Post Reply Close Saving..... Edit Comment Close By: rcrowley (17 month(s) ago) I would like to use this in my classroom. How can I download it so that I don't have the side advertisements? Saving..... Post Reply Close Saving..... Edit Comment Close By: tahani8081 (24 month(s) ago) well presented! Thanks Saving..... Post Reply Close Saving..... Edit Comment Close By: Aryan0101 (27 month(s) ago) Please send me power point presentation of addition and subtraction of Decimal om firstname.lastname@example.org Saving..... Post Reply Close Saving..... Edit Comment Close By: jestewart12 (28 month(s) ago) Hey, I am an educator in Mississippi and I was wondering if I could use your powerpoint in my class? email@example.com. Thanks Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Addition & Subtraction of Decimals: Addition andamp; Subtraction of Decimals by Doug McFarland Horizon Academy Roeland Park, Kansas www.horizon-academy.com Add and Subtract like Columns: Add and Subtract like Columns 71 + 58 + 25 = _______ 4 1 15 RULE: Only add and subtract LIKE columns. Slide3: 7.1 + 5.8 + 2.5 = _______ Add andamp; Subtract like Columns . 4 1 15 RULE: Only add and subtract LIKE columns. The “Understood” Decimal: The 'Understood' Decimal Consider the whole number 15 15 = 1 ten + 5 ones (10 + 5). We could put a decimal to separate the whole number from the decimal. 15.0 There is NO value in the tenths column, so we put 0 (zero). Addition with the “Understood” Decimal: Addition with the 'Understood' Decimal If you were adding 15 + 12 you could write the problem 15.0 + 12.0 15.0 + 12.0 = 27.0 or 27 When there is no decimal value, the zero and the decimal are NOT written, but they are understood to still be there. Make The Columns Even: Make The Columns Even 34.5 + 21 + 8.5 .0 34.5 21.0 8.5 + RULE: Add zeros to even the columns Make The Columns Even: Make The Columns Even 44.589 + 7.23 + 5 56.819 1 1 7 23 0 5 000 Subtracting Decimals: Subtracting Decimals Remember how to even your columns. Remember the 'understood' .0 when looking at a whole number like 7 It could be 7.0 or 7.00 if needed. In subtraction, it will be needed. Let’s Look at Subtraction: Let’s Look at Subtraction 34 – 12 = _____ Subtract Similar Columns: Subtract Similar Columns 34 – 1.2 = _____ RULE: Only add and subtract LIKE columns. Subtract Similar Columns: Subtract Similar Columns 34 – 1.2 = _____ 1 8 2 3 Here’s a Tricky One: Here’s a Tricky One 8 - 3.56 = _______ .00 5.56 1 1 4. 4 4 We’re Done!: We’re Done! Nice job following along in the lesson! Try to use what you learned in your work! Doug McFarland ©2006 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.