# Trip Chips

## Solution

They ate 51 bags of chips on their trip.

## Explanation

### Step 1

Use the clues to find out how many bags of chips the scouts had left. Make a list or fill in a chart to keep track of the information.

Add up the total for each kind of chips to see how many bags were left in all.

Kind of chip | How many boxes? | How many bags left over? | Total |
---|---|---|---|

Potato chips | 2 | 3 | 23 |

Nacho chips | 1 | 0 | 10 |

Barbecue chips | 0 | 6 | 6 |

Total |
3 | 9 | 39 |

Another way to keep track of the information:

Draw | Number |
---|---|

Potato chips |
23 |

Nacho chips |
10 |

Barbecue chips |
6 |

Add to find how many bags of chips are left over: 23 + 10 + 6 = |
39 |

### Step 2

To find out how many they had at first:

Think: They had 9 boxes with 10 bags in each box to start.

That means 90 bags to start.

To find out how many they ate, subtract:

90 − 39 = 51

They ate 51 bags of chips on their trip.