Week 16 - Phone Numbers/License Plates/UPC

Match the following.

The fax number for TCHS is 229-386-1022. What are each of the following called?

• station code

• 386

• exchange code

• 229

• area code

• 1022

What is the total amount of phone numbers that can be created for area codes 404, 470, 478, 678, 706, 762, and 770?

• 70,000,000,000

• 70,000,000

• 10,000,000

• 490

How many license plates can be made in this format?

• 10,000,000

• 17,576,000

• 92

• 6,760,000

At some schools, student ID numbers consists of 6 characters. The first four characters are numbers and cannot repeat. The last two characters are letters and cannot repeat. How many student IDs are possible? 

• 6,760,000
• 4,738,500
• 6,500,000
• 3,276,000

You just bought a safe and it has this type of combination. How many different codes could you make? The letters may NOT repeat.

• 10,000

• 456,976

• 104

• 358,800

You just bought a safe and it has this type of combination. How many different codes could you make? The letters may repeat.

• 10,000

• 456,976

• 104

• 358,800

How many digits are there in a UPC code?

• 8

• 10

• 14

• 12

Is this UPC valid?
7-22252-11004-6

• yes
• no
• not enough information

What is the purpose of a check digit in a UPC code?

• To track the location of the product.

• To make the barcode more visually appealing.

• To provide additional information about the product.

• To ensure accuracy and detect errors

Calculate the check digit for the UPC Code.

• 8

• 2

• 6

• 4