Question
Fill in the blanks.
125, 127, (a) _____, 131 , (b) _____ , 135, 137
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Fill in the blanks.
125, 127, (a) _____, 131 , (b) _____ , 135, 137