Question

Janice is confused and thinks that 10 × 1.3 is 1.30. Tell Janice a rule for multiplying by 10 that works for both integers and decimals and explain why this rule is valid.

Answer 1

Hi!

When multiplying by ten, the decimal moves one space to the right. 
^the answer

I also included an image showing the decimal place moved to the right.

Hope this helps! :)