Fill in the blanks

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. sq. cm to sq. mm
= 2 x
= sq. mm

2. 18 sq. m to sq. cm
= x
= sq. cm

3. 5 sq. km to sq. m
= x
= sq. m