Guess and Check

1). A farmer has chickens and pigs. In his barnyard, he counted 200 heads and 500 feet. How many pigs does he have?

AnimalsChickens (2 feet)Pigs (4 feet)Total feet = 500
200
100
100
200 + 400 = 600
too many pigs
200
 
 
 
200
 
 
 
200
 
 
 

Answer: ______

2). Mrs. Wright has dimes and quarters. She has 30 coins for a total value of $3.90. How many quarters does she have?
CoinsDimes (10 cents)Quarters (25 cents)Total = 390 cents
30
 
 
 
30
 
 
 
30
 
 
 
30
 
 
 

Answer: ______

3). A gardener found spiders and insects in his roses. There were 5000 of the pests with a total of 34,000 legs. How many insects were there?

PestsSpiders (8 legs)Insects (6 legs)Total legs = 34,000
5,000
 
 
 
5,000
 
 
 
5,000
 
 
 
5,000
 
 
 

Answer: ______