Rona bought a length of rope. She cut off 1 meter of rope. Now she has 3 meters of rope. How much rope did Rona buy?
3 + 1 = ?
To find out how much rope Rona bought, we need to reverse the process.
If Rona initially had 3 meters of rope and then cut off 1 meter of rope, we can subtract the 1 meter from the 3 meters to find the original length.
3 meters - 1 meter = 2 meters
So, Rona bought 2 meters of rope.