Question
Fill in the blanks.
Abel spends 15 of his money on 4 pens and 2 erasers.
Each eraser costs twice as much as each pen.

Let the price of 1 pen be 1 u.
  1. Cost of 1 eraser = _____ u
  2. Amount that Abel has spent = _____ u
  3. Amount that Abel has left = _____ u
  4. Amount that Abel 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.
Abel spends 15 of his money on 4 pens and 2 erasers.
Each eraser costs twice as much as each pen.

Let the price of 1 pen be 1 u.
  1. Cost of 1 eraser = _____ u
  2. Amount that Abel has spent = _____ u
  3. Amount that Abel has left = _____ u
  4. Amount that Abel has at first = _____ u