How does multiplying by $10$10 change the place value of a number?
The place value of only the largest digit increases by ten places.
The place value of each digit increases by ten places.
The place value of each digit increases by one place.
The place value of only the largest digit increases by one place.
Find the value of $3\times10$3×10.
Find the value of $7\times10$7×10.
Which option describes a method for multiplying by $50$50?