Sheet # 247 Critical Thinking

Name: _____________________ Date_____________

**2) Alan and Bob together weigh 90 pounds. Alan, Bob and Jim together weigh 148 pounds. How much does Jim weigh?
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**3) Find two numbers so that their product is 20 and their difference is 19.
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**4) Jan needs 33 cents worth of stamps to mail her letter. She has 3-cent and 5-cent stamps. List all the ****possible combinations of 3-cent and 5-cent stamps that Jan can use to mail the letter?
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**5) Jose and Maria saw 13 clowns at the circus. Each clown was wearing either red, yellow or green shoes. ****Twice as many clowns were wearing red shoes as yellow shoes. ****There were 4 clowns wearing green shoes.
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**6) All 22 members of the two soccer teams are at an award ceremony. Half of the team brought their dads. ****How many people are at the ceremony?
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**8) Sarah and her friends took their tricycles and wagons to the playground. If Sarah counted 29 wheels, how ****many were tricycles and how many wagons were at the playground? List all the possible combinations of ****wagons and tricycles.
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**9) Ten apples and 5 bananas cost $1.65. One apple and one banana together cost $0.20. What is the cost of ****one apple? one banana?
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**10) Jose needs $27 to buy a skate board. He earns $4 per hour for mowing lawns and $3 per hour for doing ****child care. What are all the possible ways that he can earn the money needed?
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**11) The number is even. It is greater than 12 but less than 26. The sum of two digits equals 7. What is the ****number?
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**14) On the pirate ship there are 24 pirate swords. Each pirate has 2 swords.
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**17) Kevin, Nick and Jason wanted to buy a remote control car. Nick's dad said he would double the money ****that each boy contributed to the cost of the car. Kevin had $39.63, Nick had $20.50, and Jason had $19.04. ****How much money did Nick's dad contribute?
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**18) Bill, Joe, and Fred were playing a game. Bill got 35 points. Joe got 8 more than Bill. Fred got 5 less than ****Bill. What did Joe and Fred each get?
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**19) Dennis has $25 and can save $3 per day. Jeena has $17 and can save $4 per day. Who will be the first to be ****able to buy a $73 tennis racket?
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**Answers:
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**1)
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**Green = 4 marbles
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**Blue = 8 marbles
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**2)
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**Jim = 58 pounds
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**3)
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**1 and 20
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**4)
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3-cent stamps | 5-cent stamps | 33 cents |

1 ( 3 cents) | 6 (30 cents) | 33 cents |

6 ( 18 cents) | 3 ( 15 cents) | 33 cents |

11 ( 33 cents) | 0 | 33 cents |

**5)
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**Jose is incorrect.
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**6 red clowns
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**3 yellow clowns
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**4 green clowns
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**6)
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**33 people
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**one half of 22 is 11. Add 11 to 22, you get 33.
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**7)
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**You buy 4 pounds for $2.0. Four apples weigh 4 pounds. So one apple weighs 1 pound.
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**8)
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**Tricycles = 3 wheels
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**Wagon = 4 wheels
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**5 wagons and 3 tricyles
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**2 wagons and 7 tricycles
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**9)
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**Using cut and try method.
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**One apple costs = 13 cents
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**One banana costs = 7 cents
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**10)
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Lawn Mowing | Child Care | Total |

0 hours | 9 hours x $3 | $27 |

3 hours x $4 = $12 | 5 hours x $3 = $15 | $27 |

6 hours x $4 = $24 | 1 hour x $3 = $3 | $27 |

**11) 16
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**12) 20 candies. Work backwards.
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**13) 11 Kilometers
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**14)
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**There are 12 pirates. 24 swords divided by 2 = 12
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**a) 6 pirates each lost a sword. 3 pirates each got 1 sword. Number of swords are
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**24 - 6 + 3 = 21 swords
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**b) One-third of 21 is 7. 21 - 7 = 14 swords were left.
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**15) Animals: 6
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**Chickens: 2
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**Pigs: 4
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**Legs: 20
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**16) Lee: $2.80 + 0.35 = $3.05
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**Jame: $2.80
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**17) 2 ( 39.63 + 20.50 + 19.04) =
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**79.26 + 41 + 38.08 = $158.34
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**Nicks dad contributed $158.34
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**18) Bill + 8 = Joe; Bill = 35
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**35 + 8 = 43 for Joe
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**Bill – 5 = Fred; Bill = 35
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**35 – 5 = 30 for Fred
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**Bill had 35, Fred got 30 and Joe got 43.
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**19) Dennis needs to save $73 - $25 = $48. He is saving $3/day. It will take him 16 days to save $48.
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**Jeena needs to save $73 - $17 = $56. She is saving $4/day. It will take her 14 days to save $56.
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**Jeena will buy the racket first.
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