Spot the one that does not belong

Exercise and reference answers

Questions

1. Items

   1. 6l²
   2. 2(lb + bh + hl)
   3. l³

   Odd item

   l³

2. Items

   1. 2πr(r + h)
   2. l × b × h
   3. πr²h

   Odd item

   2πr(r + h)

3. Items

   1. cm³
   2. cm²
   3. mL

   Odd item

   cm²

4. Items

   1. Painting
   2. Wrapping
   3. Filling

   Odd item

   Filling

Explanation