March 4, 2025

 China 

1 digitals, begin with 1, like this:

+86 13X XXXX XXXX

+86 15X XXXX XXXX

+86 17X XXXX XXXX

India

• +91 222 1234567
• + (ISD Code) (3 digit area code) (7 digit number)

Iran

011 - 98 - 10 Digit Mobile Number

Russia

• Russia’s country code is 7.
• There are now four area codes operating within Moscow. Both 495 and 499 are used in the city, while 496 and 498 are used on the outskirts.
• For all calls within Russia (including within Moscow), you must dial 8 plus the 10-digit number including the area code.

007-496-xxx-xxxx

8C, 8D Math. car/Truck license plates

2a. In the old Ontario license plates, the first three slots can only host numbers, and the next

three slots can only host letters, how many possible combinations are there in Ontario license plates?

_________, _________, _________ ___________, ___________, _________

2b. Ontario is running out of six- slot license plates (e.g. 328 JTJ). List six other alternatives to deal with this problem. (3)