Math 6 Unit 02 Notes - Decimals Worksheet Page 15
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19Math 6 Unit 02 Notes – Decimals
Separate the shaded grids into groups of 0.5. How many groups do you have?
Use decimal grids to divide 6.74 ÷ 2 =
Example
Remember to point out to students that if a number has no decimal point, the decimal point is
understood to go after the number.
A common error that students make when dividing a decimal by a whole number is to clear the decimal
from the dividend and move the decimal in the divisor—and then add that same number of zeros to the
dividend. Again, emphasize that an “invisible” decimal exists at the end of every whole number so no
movement of the decimal is necessary when dividing by a whole number.
Begin with simple examples such as:
4 0
.
4
.
4
.
4
4 0
.
.
7 28 0
.
. .
7 2 8
7 28
7 2 8
.
.
007 28
.
0
−
−
−
−
−
28
28
28
28
2 8
0 0
0 0
0
0
0
−
−
0
0
Algorithm for Dividing Decimals
1. Move the decimal point as far to the right as possible in the
divisor.
2. Move the decimal point the same number of places to the right
in the dividend.
3. Bring up the decimal point straight up into the quotient.
4. Divide the way you normally would.
Math 6 NOTES
Unit 02: Decimals
Page 15 of 19
2014-15 -NVACS
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