Question
Fill in the blanks.
Albert spends 15 of his money on 4 marbles and 3 buttons.
Each button costs four times as much as each marble.

Let the price of 1 marble be 1 u.
  1. Cost of 1 button = _____ u
  2. Amount that Albert has spent = _____ u
  3. Amount that Albert has left = _____ u
  4. Amount that Albert has at first = _____ u
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

Fill in the blanks.
Albert spends 15 of his money on 4 marbles and 3 buttons.
Each button costs four times as much as each marble.

Let the price of 1 marble be 1 u.
  1. Cost of 1 button = _____ u
  2. Amount that Albert has spent = _____ u
  3. Amount that Albert has left = _____ u
  4. Amount that Albert has at first = _____ u