Question
Look at the picture.
  1. How many units is Bottle 3 taller than Bottle 2?
  2. What is the total height of Bottle 4 and Bottle 1?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Look at the picture.
  1. How many units is Bottle 3 taller than Bottle 2?
  2. What is the total height of Bottle 4 and Bottle 1?