![Page 1: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/1.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
a. 0.05 1000
![Page 2: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/2.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
Move 3 places to the right.a. 0.05 1000
![Page 3: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/3.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
Move 3 places to the right.a. 0.05 1000 = 0 0 5 0.
![Page 4: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/4.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
Move 3 places to the right.a. 0.05 1000
= 50
= 0 0 5 0.
![Page 5: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/5.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
b. 95.38 0.0001
Move 3 places to the right.a. 0.05 1000
= 50
= 0 0 5 0.
![Page 6: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/6.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
b. Move 4 places to the left.
Move 3 places to the right.a. 0.05 1000
= 50
= 0 0 5 0.
95.38 0.0001
![Page 7: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/7.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
b. Move 4 places to the left.
Move 3 places to the right.a. 0.05 1000
= 50
= 0 0 5 0.
= .0 0 9 5 3 895.38 0.0001
![Page 8: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/8.jpg)
EXAMPLE 1 Multiply Decimals Using Mental Math
b. Move 4 places to the left.
Move 3 places to the right.a. 0.05 1000
= 50
= 0.009538
= 0 0 5 0.
= .0 0 9 5 3 895.38 0.0001
![Page 9: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/9.jpg)
EXAMPLE 2
The graph shows the number of vehicles that crossed bridges during 2000. How many vehicles crossed the Golden Gate Bridge?
Multiply Decimals by Powers of Ten
Bridges
![Page 10: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/10.jpg)
EXAMPLE 2 Multiply Decimals by Powers of Ten
The graph shows the number of vehicles that crossed bridges during 2000. How many vehicles crossed the Golden Gate Bridge?
Bridges
![Page 11: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/11.jpg)
EXAMPLE 2 Multiply Decimals by Powers of Ten
4.25 10,000,000
![Page 12: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/12.jpg)
EXAMPLE 2 Multiply Decimals by Powers of Ten
4.25 10,000,000 Move 7 places to the right.
![Page 13: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/13.jpg)
EXAMPLE 2 Multiply Decimals by Powers of Ten
4.25 10,000,000 = 4 2 5 0 0 0 0 0 . Move 7 places to the right.
![Page 14: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/14.jpg)
EXAMPLE 2 Multiply Decimals by Powers of Ten
4.25 10,000,000 = 4 2 5 0 0 0 0 0 . Move 7 places to the right.
= 42,500,000
![Page 15: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/15.jpg)
EXAMPLE 2 Multiply Decimals by Powers of Ten
4.25 10,000,000 = 4 2 5 0 0 0 0 0 . Move 7 places to the right.
= 42,500,000
In 2000, 42,500,000 vehicles crossed the Golden Gate Bridge.
ANSWER
![Page 16: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/16.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10
![Page 17: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/17.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10 Move 1 place to the left.
![Page 18: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/18.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10= 5 0 . 8 3 Move 1 place to the left.
![Page 19: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/19.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10= 5 0 . 8 3 Move 1 place to the left.
= 50.83
![Page 20: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/20.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10= 5 0 . 8 3 Move 1 place to the left.
= 50.83
b. 508.3 0.01
![Page 21: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/21.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10= 5 0 . 8 3 Move 1 place to the left.
= 50.83
b. Move 2 places to the right.508.3 0.01
![Page 22: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/22.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10= 5 0 . 8 3 Move 1 place to the left.
= 50.83
b. = 5 0 8 3 0 .508.3 0.01 Move 2 places to the right.
![Page 23: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/23.jpg)
EXAMPLE 3 Divide Decimals Using Mental Math
a. 508.3 10= 5 0 . 8 3 Move 1 place to the left.
= 50.83
b. = 5 0 8 3 0 .
= 50,830
508.3 0.01 Move 2 places to the right.
![Page 24: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/24.jpg)
GUIDED PRACTICE for Example 1,2 and 3
![Page 25: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/25.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
![Page 26: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/26.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000
![Page 27: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/27.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 Move 3 places to the right.
![Page 28: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/28.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
![Page 29: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/29.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
2. 153.6 0.01
![Page 30: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/30.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
Move 2 places to the left.2. 153.6 0.01
![Page 31: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/31.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.2. 153.6 0.01
![Page 32: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/32.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100
2. 153.6 0.01
![Page 33: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/33.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 Move 2 places to the left.
2. 153.6 0.01
![Page 34: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/34.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
2. 153.6 0.01
![Page 35: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/35.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000
2. 153.6 0.01
![Page 36: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/36.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 Move 3 places to the left.
2. 153.6 0.01
![Page 37: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/37.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
2. 153.6 0.01
![Page 38: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/38.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
5. 5 0.1
2. 153.6 0.01
![Page 39: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/39.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
5. 5 0.1 Move 1 places to the right.
2. 153.6 0.01
![Page 40: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/40.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
5. 5 0.1 = 50 Move 1 places to the right.
2. 153.6 0.01
![Page 41: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/41.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
5. 5 0.1 = 50 Move 1 places to the right.
6. 3.2 0.001
2. 153.6 0.01
![Page 42: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/42.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
5. 5 0.1 = 50 Move 1 places to the right.
6. 3.2 0.001 Move 3 places to the right.
2. 153.6 0.01
![Page 43: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/43.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
1. 6.07 1000 = 6070 Move 3 places to the right.
= 1.536 Move 2 places to the left.
3. 42.6 100 = 0.426 Move 2 places to the left.
4. 509 1000 = 0.509 Move 3 places to the left.
5. 5 0.1 = 50 Move 1 places to the right.
6. 3.2 0.001 = 3200 Move 3 places to the right.
2. 153.6 0.01
![Page 44: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/44.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
Use the graph in Example 2 to estimate the number of vehicles that crossed the George Washington Bridge in 2000.
Bridges7.
![Page 45: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/45.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
5.34 10,000,000
Use the graph in Example 2 to estimate the number of vehicles that crossed the George Washington Bridge in 2000.
Bridges7.
![Page 46: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/46.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
5.34 10,000,000 Move 7 places to the right.
Use the graph in Example 2 to estimate the number of vehicles that crossed the George Washington Bridge in 2000.
Bridges7.
![Page 47: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/47.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
5.34 10,000,000 = 53,400,000 Move 7 places to the right.
Use the graph in Example 2 to estimate the number of vehicles that crossed the George Washington Bridge in 2000.
Bridges7.
![Page 48: EXAMPLE 1 Multiply Decimals Using Mental Math a. 0.05 1000](https://reader036.vdocument.in/reader036/viewer/2022062318/5519bbe355034660578b49cb/html5/thumbnails/48.jpg)
GUIDED PRACTICE for Example 1,2 and 3
Find the product or quotient using mental math.
5.34 10,000,000 = 53,400,000 Move 7 places to the right.
ANSWER
In 2000, 53,400,000 vehicles crossed the George Washington Bridge.
Use the graph in Example 2 to estimate the number of vehicles that crossed the George Washington Bridge in 2000.
Bridges7.