Name: 
 

Try It Out -- Chapter 12, Lesson 10


Numeric Response
 
 

m4ch12l10_files/i0020000.jpg
 

 1. 
The grid above shows 0.71 + 0.27.
What is the sum?

 
 

m4ch12l10_files/i0040000.jpg
 

 2. 
The grid above shows 0.33 - 0.05.
What is the difference?

 
 
Add using a 100 grid.
 

 3. 
0.87 + 0.11 = ____.

 

 4. 
0.34 + 0.45 = ____.

 

 5. 
0.23 + 0.58 = ____.

 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 
 
Study the 100 grid. It starts with 1.00. 0.09 is subtracted over and over using different colour blocks each time. The red boxes represent the equation 1.00 - 0.09.

m4ch12l10_files/i0110000.jpg
 

 6. 
What is the difference?
1.00 - 0.09 = ___.
a.
0.92
b.
0.91
c.
0.90
d.
0.93
 

 7. 
Which colour boxes in the 100 grid does the equation 0.91- 0.09 represent?
a.
red
b.
dark green
c.
dark blue
d.
yellow
 

 8. 
What is the difference?
0.91 - 0.09 = ___.
a.
1.00
b.
0.99
c.
0.89
d.
0.82
 

 9. 
Which colour boxes in the 100 grid does the equation 0.73 - 0.09 represent?
a.
light blue
b.
dark green
c.
yellow
d.
dark blue
 

 10. 
What is the difference?
0.73 - 0.09 = ___.
a.
0.64
b.
0.82
c.
0.91
d.
1.00
 



 
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