Name: 
 

Try It Out -- Chapter 9, Lesson 4



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Joe wants to find out how old his 12-year-old dog is in human years.
Order the steps Joe uses to solve the problem.

a.
60 is a reasonable answer because 10 X 5 = 50, so 12 X 5 = 60.
b.
Joe multiplied 12 X 5.
c.
Joe checked his answer.
d.
Joe’s answer is 60.
 

 1. 

What was Joe’s first step?
 

 2. 

What was Joe’s second step?
 

 3. 

What was Joe’s third step?
 

 4. 

What was Joe’s final step?
 
 
m4ch9l4_files/i0070000.jpg

Josephine read a person living on Mars would age differently than a person living on Earth.  She wants to know how old a 10-year-old Martian would be in human years. Order the steps Josephine uses to solve the problem.

a.
Joesphine multiplied 10 X 2.
b.
Joesphine checked her answer.
c.
20 is a reasonable answer, because 10 X 1 = 10, so 10 X 2 = 20.
d.
Joesphine’s answer is 20.
 

 5. 

What was Joesphine’s first step?
 

 6. 

What was Joesphine’s second step?
 

 7. 

What was Joesphine’s third step?
 

 8. 

What was Joesphine’s final step?
 



 
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