Question
Look at the picture.
Each box stands for 1 unit.
  1. Comb A is _____ units long.
  2. Comb B is _____ units long.
  3. Comb B is _____unit shorter than Comb A.
  4. The total length of Comb A and Comb B is _____units.
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

(d)

Click button first when a symbol is required. X

Look at the picture.
Each box stands for 1 unit.
  1. Comb A is _____ units long.
  2. Comb B is _____ units long.
  3. Comb B is _____unit shorter than Comb A.
  4. The total length of Comb A and Comb B is _____units.