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# 2 28 Add Subtract Decimals

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### 2 28 Add Subtract Decimals

1. 1. Adding & Subtracting Decimals<br />12/14/09<br />EQ: How do I add or subtract decimals?<br />12/13/2009<br />1<br />Bitsy Griffin Lessons 2-24 & 25<br />
2. 2. Review:<br />How do you simplify a fraction?<br />12/13/2009<br />2<br />Bitsy Griffin Lessons 2-24 & 25<br />
3. 3. Review:<br />How do you change a an improper fraction to a mixed number?<br />12/13/2009<br />3<br />Bitsy Griffin Lessons 2-24 & 25<br />
4. 4. Review:<br />How do you rename a fraction to make it useable for subtraction?<br />12/13/2009<br />4<br />Bitsy Griffin Lessons 2-24 & 25<br />
5. 5. Suggestions:<br />Make sure decimals are lined up on top of each other.<br />12/13/2009<br />5<br />Bitsy Griffin Lessons 2-24 & 25<br />
6. 6. Suggestions:<br />8.23 + 4.65<br /> 8.23<br />+ 4.65<br />12/13/2009<br />6<br />Bitsy Griffin Lessons 2-24 & 25<br />
7. 7. Suggestions:<br />If the number of decimals don’t match up, fill in 0s at the end until they do<br />12/13/2009<br />7<br />Bitsy Griffin Lessons 2-24 & 25<br />
8. 8. Suggestions:<br />3.6 -1.042<br /> 3.600<br /> - 1.042<br />12/13/2009<br />8<br />Bitsy Griffin Lessons 2-24 & 25<br />
9. 9. Practice:<br />Page 42 #1-6<br />Page 44 #1-6<br />12/13/2009<br />9<br />Bitsy Griffin Lessons 2-24 & 25<br />
10. 10. Practice - answers:<br />5.03<br />16.31<br />9.94<br />9.37<br />8.56<br />8<br />12/13/2009<br />10<br />Bitsy Griffin Lessons 2-24 & 25<br />11.61<br />1.11<br />14.82<br />\$1.96<br />54.035<br />\$27.80<br />
11. 11. Problems:<br />Page 42 #9-26<br />Page 44 #12-23<br />Page 43 #27-33<br />Page 45 #24-27<br />12/13/2009<br />11<br />Bitsy Griffin Lessons 2-24 & 25<br />
12. 12. EQ:<br />How do I add or subtract decimals?<br />12/13/2009<br />12<br />Bitsy Griffin Lessons 2-24 & 25<br />