Determining Multiples of 4 and 7 Using Divisibility Rules

The video tutorial explains how to determine if a number is a multiple of 4 or 7 using divisibility rules. It begins with a basic introduction to divisibility, followed by detailed explanations of the rules for 4 and 7, including examples. The rule for 4 involves checking if the last two digits of a number are divisible by 4, while the rule for 7 is more complex, involving doubling the last digit and subtracting it from the rest of the number. The tutorial concludes with a recap of these rules.

What is the first step in applying the divisibility rule for 7?

How do you determine if the number 217 is a multiple of 7?

Based on the lesson, why is 85 not a multiple of 4?