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Lesson 8: Using the Order of Operations with Decimals



 1. 

Use the order of operations to select the correct answer for the following expression.
     4.1 + 3.2 mc001-1.jpg 1.8 mc001-2.jpg 2.5 mc001-3.jpg 0.5
a.
4.86
b.
21.28
c.
10.62
d.
14.72
 

 2. 

Use order of operations to select the correct answer for the following expression.
    (4.25 + 2.6 mc002-1.jpg 8.3) mc002-2.jpg 7.9
a.
48.955
b.
7.25
c.
17.93
d.
5.29
 

 3. 

Use the order of operations to select the correct answer for the following expression.
     12.67 mc003-1.jpg (5.3 mc003-2.jpg 9.4 mc003-3.jpg 7.36) mc003-4.jpg 15.8 mc003-5.jpg 0.4
a.
158.32
b.
69.29
c.
177.325
d.
94.63
 

 4. 

Use the order of operations to select the correct answer for the following expression.
     78.3 mc004-1.jpg 2.4 mc004-2.jpg (1.5 + 0.72 mc004-3.jpg 0.3) + 4.1 
a.
64.84
b.
386
c.
73.04
d.
300.11
 

 5. 

Select the  numerical expression that matches the following word expression.
     Add 6.9 to 2.7. Multiply by 1.4. Subtract 3.6.
a.
6.9 + 2.7 mc005-1.jpg (1.4 mc005-2.jpg 3.6)
c.
6.9 + (2.7 mc005-5.jpg 1.4) mc005-6.jpg 3.6
b.
(6.9 + 2.7) mc005-3.jpg 1.4 mc005-4.jpg 3.6
d.
(6.9 + 2.7 mc005-7.jpg 1.4) mc005-8.jpg 3.6
 

 6. 

Use the order of operations to select the correct answer to the expression in question 5.
a.
0.96
b.
7.08
c.
9.84
d.
8.32
 

 7. 

Select the numerical expression that matches the following word expression.
     Multiply 9.3 by 1.5. Add 7.8. Divide by 2.5. Subtract 8.27.
a.
(9.3 mc007-1.jpg 1.5 + 7.8) mc007-2.jpg 2.5 mc007-3.jpg 8.27
c.
9.3 mc007-7.jpg (1.5 + 7.8 mc007-8.jpg 2.5) mc007-9.jpg 8.27
b.
(9.3 mc007-4.jpg 1.5) + (7.8 mc007-5.jpg 2.5) mc007-6.jpg 8.27
d.
9.3 mc007-10.jpg 1.5 + (7.8 mc007-11.jpg 2.5 mc007-12.jpg 8.27)
 

 8. 

Use the order of operations to select the correct answer to the expression in question 7.
a.
8.8
b.
34.696
c.
16.16
d.
0.43
 

 9. 

Paula would like to place a mat around a photo in a picture frame. The picture frame is 1.6 m long and 1.35 m wide. The photo is 0.75 m long and 0.3 m wide.

                      mc009-1.jpg
Select the expression that will calculate the area of the mat.
a.
0.75 mc009-2.jpg 0.3 + 1.6 mc009-3.jpg 1.35
c.
1.6 + 1.35 mc009-7.jpg 0.75 + 0.3
b.
1.6 mc009-4.jpg 1.35 mc009-5.jpg 0.75 mc009-6.jpg 0.3
d.
1.6 mc009-8.jpg 1.35 + 0.75 mc009-9.jpg 0.3
 

 10. 

Use order of operations to calculate the area of the mat, from question 9.
a.
1.9 m2
b.
2.385 m2
c.
2.9125 m2
d.
2.4 m2
 



 
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