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Counting --1

Kim was selling tickets for the school play. One day she sold tickets numbered 109 through 113. How many tickets did she sell that day?. Counting --1. John bought some apples. If he entered the store with $113 and left with $109, how much did the apples cost?. Counting --2.

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Counting --1

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  1. Kim was selling tickets for the school play. One day she sold tickets numbered 109 through 113. How many tickets did she sell that day? Counting --1

  2. John bought some apples. If he entered the store with $113 and left with $109, how much did the apples cost? Counting --2

  3. John is the 109th person in a line, and Kim is the 113th person. How many people are there between John and Kim? Counting --3

  4. To count how many integers there are between two integers, follow these rules: ***work a smaller problem or: If exactly one of the endpoints is included: subtract. If both endpoints are included: subtract and then add 1. If neither endpoint is included: subtract and then subtract 1 more. Counting --4

  5. Blair has 4 painting in the basement. She is going to bring up 2 of them and hang 1 in her den and 1 in her bedroom. In how many ways can she choose which painting go in each room? Counting --5

  6. Five people are standing in a room. How many different handshakes can be made if no two people shake hands with each other more than once but everyone shakes hands with every other person? Counting --6

  7. Blair has 4 painting in the basement. She is going to bring up 2 of them and hang 1 in her den and 1 in her bedroom. In how many ways can she choose which painting go in each room? Counting --7

  8. How many integers are there between 100 and 100 all of whose digits are odd? Counting --8

  9. D only F only G only F and G only D and G only G If the integers from 1 through 15 are each placed in the diagram below, which of the following regions is (are) empty? Odd Square A D B E F H C Prime Counting --9

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