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Choose the odd numbers.

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  • count back multiple of 7
    56,49,..?
  • What is the square number of 1000
    100000 1000000 10000000
  • Choose the equal number pair
    4+4,7 7-2,7 10-3,7
  • choose multiple of 5.
    23, 24, 25
  • Find missing numbers.
    67,87,97,.........,117