1. Round up 165mm to the nearest cm |

2.Minus 45cm from 1 metre? |

3. Find the difference between 2.3kg and 2000g |

4. Find the difference between 40mm and 14mm. |

5. Find the total sum of £0.81 and £2.55 |

6. Find the sum of £1.41 and £3.42? |

7. Find the sum of 6m and 999cm ? |

8. Find the difference between 165cm and 1m? |

9. Find the total sum of 3 50p coins? |

10. Find the difference in length between 14m and 12.5 |