Question
Complete the number pattern.

(a)           , 4480, 3980, (b)           , 2980, 2480
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.

(a)           , 4480, 3980, (b)           , 2980, 2480