Addition and Subtraction Involving Fractions, decimals, and mixed numbers - PowerPoint PPT Presentation

Loading...

PPT – Addition and Subtraction Involving Fractions, decimals, and mixed numbers PowerPoint presentation | free to download - id: 793770-YzFlM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Addition and Subtraction Involving Fractions, decimals, and mixed numbers

Description:

Title: Addition and Subtraction Involving Fractions, decimals, and mixed numbers Last modified by: Melanie Krempin Document presentation format – PowerPoint PPT presentation

Number of Views:311
Avg rating:3.0/5.0
Slides: 11
Provided by: ccisdCom
Learn more at: http://www.ccisd.com
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Addition and Subtraction Involving Fractions, decimals, and mixed numbers


1
Addition and Subtraction Involving Fractions,
decimals, and mixed numbers
  • Lesson 1 (3rd 6 Weeks)
  • TEKS 6.2B

2
Adding/Subtracting Decimals
  • Line up decimals, add zeros at the end of the
    numbers so each one has the same number of
    decimal places
  • Add subtract like whole numbers, regrouping as
    needed.
  • Bring decimal straight down in the answer.

3
EX
  • Find the difference between 33.5 and 8.35

4
2
33.5
0
1
1
- 8.35
.
5
1
5
2
4
/- Fractions Mixed Numbers
  • If the fractions have the same denominator,
    add/subtract the numerators and use the same
    denominator.
  • EX

6 8
14
8
6



17
17
17
17
5
  • If the fraction have unlike denominators, rewrite
    them as fractions with a common denominator. Then
    add/subtract the numerators and use the common
    denominator.
  • When adding/subtracting mixed numbers the
    whole-number and fractional parts may need to be
    regrouped.
  • If necessary, simplify the answer.

6
EX
1
1
x 1
8
8
x 1
1 6 7
6
3
x 2

4
8
x 2
7
8
7
EX
16
2
x 8
3
24
x 8
16 15 1
15
5
x 3
-
8
24
x 3
1
24
8
EX
10
20
x 2
30
15
x 2
2
10
x 5
-
6
30
x 5
10
10
1


3
10
30
9
EX
1
5
x 5
2
4
20
x 5
2
8
x 4
3

5
20
x 4
13
5
20
10
EX
21
3
18

1

18
18
18
1
3
21
x 3
8
7
6
18
x 3
8
4
x 2
3
-
18
9
x 2
13
4
18
About PowerShow.com