Adds or subtracts

Exercise and reference answers

Upper category

Adds

Lower category

Cuts

Items

1. Category

   Adds

   Item

   Tailwind

2. Category

   Adds

   Item

   Downstream

3. Category

   Adds

   Item

   Downhill

4. Category

   Adds

   Item

   With wind

5. Category

   Cuts

   Item

   Headwind

6. Category

   Cuts

   Item

   Upstream

7. Category

   Cuts

   Item

   Uphill

8. Category

   Cuts

   Item

   Into wind

Instructions

Send each case to the track where speed adds or the track where it subtracts.

Explanation