Question
Study the pattern. What is the missing number?
Number 1 Number 2 Number 3 Number 4
40 50 60 ?
50 60 70 80
3 m

Click button first when a symbol is required. X

Study the pattern. What is the missing number?
Number 1 Number 2 Number 3 Number 4
40 50 60 ?
50 60 70 80