Chapter 3 Place value ordering and rounding

SEMESTER 1






 





















http://www.homeschoolmath.net/teaching/d/multiply_divide_by_10_100_1000.php
In the decimal system, the number in each column is 10 times bigger than the number to its right. Th h t u 1 1 1 1 x10 x1...

In the decimal system, the number in each column is 10 times bigger than the number to its right. Th h t u 1 1 1 1 x10 x10...

x10 If we multiply any digit by ten it will move into the next column Th h t u 6 6 We must put a 0 in the empty units co...

Let’s look at another number 23 x 10 = 230 Th h t u 2 3 x10 2 x10 3 Then we must remember to put the zero in to the hold t...




If we multiply 6 by a hundred it will move up two columns Th h t u 6 6 X 100 We must put a 0 in the empty columns to hol...




If we multiply 6 by a thousand it will move up three columns x1000 Th h t u 6 6 We must put a 0 in the empty columns to ...



















An easy way to compare decimal numbers is to line up the numbers by their place values. Compare 3.42 and 3.47. 3.42 Write ...
Let’s look at another one. Compare 1.3 and 1.13 1.3 Write the numbers in a column, 1.13 lining up the decimal points. 1.30...
http://www.mathsisfun.com/ordering_decimals.html
You Try it!<br />Compare and order using <, > or =<br /> 5.9 6.8<br /> 0.34 0.340<br /> 8.08 8.8<br /> 4...



















































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