If you are multiplying by 100, the decimal will move 2 places to the right.
It moves to the right when multiplying because the number is getting greater, and there are 2 zeroes in 100 so it moves twice.
Answer:
17. 15
18. 8(this one I'm not sure tho what does the right one say)
19. 32
20. 5
Answer:
Hey there!
5 divided by 2/5 is equal to 25/2, or 12.5
Hope this helps :)