# Count forwards and backwards by tens, on and off the decade, with two- and three-digit numbers, eg 40, 30, 20, ... (on the decade); 427, 437, 447, ... (off the decade)

1. | 10 less, 10 more than 40 | |

2. | Which number is 10 more than 18? | |

3. | Which number is 10 more than 20? | |

4. | Which number is 10 more than 2? | |

5. | Which number is 10 more than 18? | |

6. | Which number is 10 more than 11? | |

7. | Which number is 10 less than 22? | |

8. | Which number is 10 more than 89? | |

9. | Which number is 10 more than 27? | |

10. | Which number is 10 more than 62? | |

11. | Which number is 10 less than 45? | |

12. | Which number is 10 less than 23? | |

13. | Which number is 10 less than 76? | |

14. | 10 less, 10 more than 10 | |

15. | 10 less, 10 more than 20 | |

16. | 10 less, 10 more than 30 | |

17. | 10 less, 10 more than 40 | |

18. | 10 less, 10 more than 50 | |

19. | 10 less, 10 more than 60 | |

20. | 10 less, 10 more than 38 | |

21. | 10 less, 10 more than 24 | |

22. | 100 Grid: Start at 63. Add 1 ten | |

23. | 100 Grid: Start at 73. Add 10 | |

24. | 100 Grid: Start at 35. Add 10 | |

25. | 100 Grid: Start at 56. Add 10 | |

26. | 100 Grid: Start at 83. Add 10 | |

27. | 100 Grid: Start at 34. Add 10 | |

28. | Which number is 10 less than 30? | |

29. | Which number is 10 less than 10? | |

30. | Which number is 10 less than 40? | |

31. | Which number is 10 less than 80? | |

32. | Which number is 10 less than 60? | |

33. | Which number is 10 less than 90? | |

34. | Which number is 10 less than 100? | |

35. | Which number is 10 less than 70? | |

36. | What Comes Next? - 10 less than 12 | |

37. | What Comes Next? - 10 more than 13 | |

38. | What Comes Next? - 10 more than 12 |