Designate the Decimal

Your child knows how to multiply three numbers to get a product, but what if two of those numbers are decimals?

What You Need:

• Calculator
• Pencil and paper

What You and Your Child Will Do:

After you present each one of the following problems, let your child use either a calculator or paper and a pencil to solve them.

1. I am thinking of three numbers with a product of 45.
   Two of the numbers are 4 and 1.5.
   The other number is a decimal.
   Designate the other decimal.
   Answer: 7.5
2. I am thinking of three numbers with a product of 12.5.
   Two of the numbers are 2 and 2.5.
   The other number is a decimal.
   Designate the other decimal.
   Answer: 2.5
3. I am thinking of three numbers with a product of 90.
   Two of the numbers are 2.5 and 2.5.
   The other number is a decimal.
   Designate the other decimal.
   Answer: 14.4