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Subscribe to Homeschool Math Newsletter - filled with math teaching information  February 2010 newsletter
Latest from my blog This is where you'll find the latest happenings, news, & ideas in math teaching Math teaching videos My videos at YouTube show you how to teach concepts.
Divide decimals - why do we move the decimal point?
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The ideas in this place value lesson are taken from the Place Value 3 ebook that I sell at MathMammoth.com. Only a few examples of each problem type are shown; you should make more problems of each kind for the student. Which number is greater?
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Which is more, 8011 or 7987? Place those numbers (approximately) on the number line.
Which is more, 2395 or 2402? Place those numbers (approximately) on the number line. Compare first how many THOUSANDS the numbers have. |
Remember, the open end or open mouth of the symbols < and > ALWAYS point to the bigger number.
Example problem types
1. Write either < or > in between the numbers.
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[a] 1050 < 5095 2400 2750 6005 4500 5771 1737 |
[b] 220 1020 8060 6999 1007 1705 4605 4409 |
[c] 1307 1032 4906 6029 5766 8565 5077 5570 |
3. Write the numbers in order.
2513, 5230, 9489, 5068, 5096, 5606, 5060, 2466, 2506, 2516
_____ < _____ < _____ < _____ < _____ < _____ < _____ < _____ < _____ < _____
4. Compare the expressions and write <, >, or =.
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a. 700 + 50 |
700 + 30 + 4 |
f. 3000 + 60 + 5 |
365 | |||
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b. 7000 + 4 |
700 + 7 |
g. 600 + 7000 + 2 |
200 + 6000 + 40 + 7 |
5. Write the numbers immediately after and before the given number.
| a. ____, 6049, ____ | b. ____, 7385, ____ | c. ____, 2300, ____ |
Next lesson: rounding to nearest hundred or thousand
The ideas in this place value lesson are taken from the Place Value 3 ebook that I sell at MathMammoth.com. Only a few examples of each problem type are shown; you should make more problems of each kind for the student.
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Copyright 2003-2010 Maria Miller
http://www.homeschoolmath.net/
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