When you're adding integers using the column method, it's important to remember 3 things:

1) Line up the numbers using place value (units with units, tens with tens, etc.)

2) Start adding from the right.

3) Don't forget to carry.

**e.g. 185 + 71**

**Step 1:** Set up the addition accurately.

185 |

+ 71 |

**Step 2: **Start by adding the units. (5 + 1 = 6)

185 |

+ 71 |

6 |

**Step 3:** Now add the tens column. (8 + 7 = 15)

As this isn't a single digit number, we have to carry the 1 into the next column like this:

185 |

+ 71 |

1 |

56 |

**Step 4: **Finally, add the hundreds column. Don't forget the 1 we carried! (1 + 1 = 2)

185 |

+ 71 |

1 |

256 |

**Answer:** 185 + 71 = 256

Before you start this activity, make sure you have a pen and paper handy to write out your columns and sums.