Question
Complete the number pattern.

80, 100, 300, 320, 520, 540, 740, (a)        , (b)        , 980
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Complete the number pattern.

80, 100, 300, 320, 520, 540, 740, (a)        , (b)        , 980