Question
6 E + 2 F = 54
7 E + 3 F = 65

Fill in the blanks.
  1. 1 E = _____
  2. 1 F = _____
  3. 3 E + 3 F = _____



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

6 E + 2 F = 54
7 E + 3 F = 65

Fill in the blanks.
  1. 1 E = _____
  2. 1 F = _____
  3. 3 E + 3 F = _____