Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After...
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![Page 1: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/1.jpg)
Place Value and Multiplication
millions thousands
100 10 1 100 10 1 100 10 1Before the
decimal point . After the decimal point
1000 100 10 1 . 1/101/100
1/10001/10000
![Page 2: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/2.jpg)
Place Value & X by 10
millions thousands
100 10 1 100 10 1 100 10 1
3 2
7, 8 9 5
3 2 0
7 8, 9 5 0
![Page 3: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/3.jpg)
Place Value & X by 10
millions thousands
100 10 1 100 10 1 100 10 1
2 3, 4 5 6
8 9, 0 1 2, 3 4 5
2 3 4, 5 6 0
8 9 0, 1 2 3, 4 5 0
![Page 4: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/4.jpg)
Place Value & X by 10
thousands After the decimal point
100 10 1 100 10 1 . 1/10 1/100
0 . 8 2
1 . 0 3
8 . 2
1 0 . 3
![Page 5: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/5.jpg)
When you multiply by ten
• The answer gets bigger
• The decimal point moves to the right one place or the numbers move one place to the left
4 6 . 5 9. 2 3 . 0
2 3 0 .
![Page 6: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/6.jpg)
Multiply by 10 -
0.06 x 10 0.06 x 10 ==
4.209 x 10 4.209 x 10 ==
3.52 x 10 =3.52 x 10 =
0.0086 x 10 0.0086 x 10 ==
35.235.2
42.0942.09
0.60.6
0.0860.086
The answer gets bigger
![Page 7: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/7.jpg)
Place Value & X by 100
millions thousands
100 10 1 100 10 1 100 10 1
3 2
7, 8 9 5
3, 2 0 0
7 8 9, 5 0 0
![Page 8: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/8.jpg)
Place Value & X by 100
millions thousands
100 10 1 100 10 1 100 10 1
3, 4 5 6
9, 0 1 2, 3 4 5
3 4 5, 6 0 0
9 0 1, 2 3 4, 5 0 0
![Page 9: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/9.jpg)
When you multiply by a hundred
• The answer gets bigger
• The decimal point moves to the right two places or the numbers move two places to the left
4 6 . 5 9 . 3 2 . 8
22 88 0
![Page 10: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/10.jpg)
Multiply by 100• 6 x 100
• 12 x 100
• 25 x 100
• 64 x 1000.16 x 0.16 x 100100
4.23 x 1004.23 x 100
13.5 x 13.5 x 100100
0.063 x 0.063 x 100100
= 1200
= 600
= 2500
= 6400 = 6.3
= 1350
= 423
= 16
![Page 11: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/11.jpg)
When you multiply by a thousand
• The answer gets bigger
• The decimal point moves to the right three places or the numbers move three places to the left
4 6. 5 9 . 32 . 3 5
222 333 555 0
![Page 12: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/12.jpg)
Multiply by 1000 • 6 x 1000
• 12 x 1000
• 25 x 1000
• 64 x 10000.16 x 0.16 x 10001000
4.23 x 4.23 x 10001000
13.5 x 13.5 x 10001000
0.063 x 0.063 x 10001000
= 12,000
= 6,000
= 25,000
= 64,000 = 63
= 13,500
= 4,230= 160
![Page 13: Place Value and Multiplication millionsthousands 100101100101100101 Before the decimal point. After the decimal point 1000100101. 1 / 10 1 / 100 1 / 1000.](https://reader036.fdocuments.in/reader036/viewer/2022072013/56649e715503460f94b6f01b/html5/thumbnails/13.jpg)
When multiplying by 10,100,1000-• I know that the number gets bigger
• The place value of each digit is changing
or
the decimal point is moving
Can I do this multiply by just looking at it?101011 =10 =10 101022 =10 x 10 =100 =10 x 10 =100101033 =10 x 10 x 10 =1000 =10 x 10 x 10 =1000101044 = 10 x 10 x 10 x 10=10000 = 10 x 10 x 10 x 10=10000