Multiplying by 10 , 100 , 1000 just write the answer down picture below

Step-by-step explanation:

1. Three zeroes equal 1,000

2. One zero equal 10

3. One zero equal 10

4. Look at the value without the zeroes

5. Three zeroes equal 1,000

6. Look at the value without the zeroes

7. Since 890 has one zero, one more zero equal 10

8. Look at the value without the zeroes

9. Same as 8.

10. Three zeroes equal 1,000

11.  Look at the value without the zeroes

12.  Three zeroes equal 1,000

13. Same as 11.

14. Same as 13.

15. N/A

16. I am not sure about this one cause I don't know if there are more zeroes or not, but same as 13.