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Numbertime Addition and Subtraction, Patterns of Addition Clips

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  1. Adding near doubles - numbers more than 20

    Duration: 00:45

  2. Adding near doubles - numbers less than 20

    Duration: 01:22

  3. Adding near doubles - numbers less than 20

    Duration: 01:25

  4. Adding near doubles

    Duration: 01:35

  5. Using near doubling to solve real life problems

    Duration: 01:34

  6. Adding near doubles - numbers more than 20

    Duration: 00:49