Animal Mouths  

 

 

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1. Thirteen luna moths flutter near a group of flowers. Seven fly away. How many are left?
    13
    7
    6
 
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2. A baby turtle is only an inch long. How many turtles would need to stand in a line for the line to be a foot long?
    2.54
    6
    12
 
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3. Eight evening grosbeaks each crack 3 large seeds. How many seeds have they cracked?
    12
    24
    32
 
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4. A hawk catches 3 rabbits each week. If there are four weeks in the month, how many rabbits does she catch in a month?
    9
    12
    15
 
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5. Most adult humans have 32 teeth. If 8 of those teeth are incisors, what fraction of teeth are incisors?
    1/4
    1/6
    1/8
 
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6. Most adult humans have 32 teeth. If 4 of those teeth are canines, what fraction of teeth are canines?
    1/4
    1/6
    1/8
 
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7. Most adult humans have 32 teeth. They have 12 molars. How many teeth are not molars?
    22
    20
    18
 
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8. If humans have 12 molars and 8 premolars, how can you compare the number of molars to the number of premolars?
    There are more molars than premolars.
    There are more premolars than molars.
    There are the same number of molars and premolars.
 
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9. Opossums have 50 teeth and humans have 32. How many more teeth does an opossum have than a human?
    22
    20
    18
 
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10. Rodents have four incisors, two in the upper jaw and two in the lower jaw. What fraction of a rodent's incisors are in the lower jaw?
    1/2
    1/3
    1/4
 
   
 


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