Question
Study the pattern. Write the missing number in the blank.
140 → 30 → 110
500 → 50 → 450
           → 70 → 504
2 m

Click button first when a symbol is required. X

Study the pattern. Write the missing number in the blank.
140 → 30 → 110
500 → 50 → 450
           → 70 → 504