A : Joelle's homework covers multiplication with powers of 10 . The first question on her homework is 32.4 time 10 squared. What is the value of the expression? a: ???
b: How does the number 32.4 change when you multiply it by 10 squared ? Select all that apply.

1. The digit 2 increases in value from 2 ones to 2 hundreds.
2. Each place is multiplied by 1,000
3. The digit 3 shifts 2 places to the left, from the tens place to the thousands place.
4