Answer:
When multiplying whole numbers by 10, simply add a 0 to the end of the number
When dividing by 10 remove a 0 from the end of the number.
Explanation:
Multiplication:
10 x 2 = 20
10 x 6970 = 69750
Division
20 / 10 = 2
6970 / 10 = 697
Hope this helps! :)