Multiplying by 10 and 100 Quiz

What happens to the digits of a number when you multiply it by 10?

• Each digit moves one place to the right.

• Each digit is replaced by zero.

• Each digit moves one place to the left.

• Each digit stays in the same place.

How do you quickly multiply a number by 10?

• Divide the number by 10.

• Add one zero to the end of the number.

• Subtract one from the number.

• Add two zeros to the end of the number.

When multiplying a number by 100, how many places do the digits move?

• One place to the left.

• Two places to the right.

• Two places to the left.

• One place to the right.

What is the quick trick for multiplying a number by 100?

• Add one zero to the end of the number.

• Subtract two from the number.

• Multiply the number by 10.

• Add two zeros to the end of the number.

If Chloe picks up 55 pieces of trash every day for 100 days, how many pieces will she have collected?

• 550

• 55

• 55000

• 5500