Divisibility Rules for Four

In this video, Mr. J explains the divisibility rule for four, which involves checking if the last two digits of a number are divisible by four. He provides four examples to illustrate the rule: 9208, 830116, 1057400, and 4664017. The video concludes with a summary of the rule and its application.

What is the main purpose of checking divisibility in mathematics?

• To subtract numbers easily

• To add numbers quickly

• To determine if a number can be divided without a remainder

• To find the largest number

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CCSS.4.OA.B.4

According to the divisibility rule for four, which part of the number should you examine?

• The first digit

• The middle digit

• The last two digits

• The entire number

In the example of 9,208, what are the last two digits used to check divisibility by four?

• 80

• 92

• 08

• 20

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CCSS.2.OA.C.3

Is the number 8 divisible by four?

• No

• Yes

• Only if it is odd

• Only if it is even

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CCSS.4.OA.B.4

For the number 830,116, what is the result of dividing the last two digits by four?

• Remainder of 1

• Remainder of 2

• No remainder

• Remainder of 3

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CCSS.3.OA.D.9

What is the significance of zero in the divisibility rule for four?

• Zero is not divisible by any number

• Zero is divisible by any number

• Zero is only divisible by even numbers

• Zero is only divisible by odd numbers

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CCSS.5.NBT.B.5

In the example of 1,057,400, what are the last two digits?

• 04

• 57

• 00

• 40

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CCSS.2.OA.C.3

Is the number 1,057,400 divisible by four?

• Only if it is odd

• Only if it is even

• No

• Yes

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CCSS.2.OA.C.3

For the number 4,664,017, why is it not divisible by four?

• The entire number is odd

• The first digit is not divisible by four

• The last two digits are not divisible by four

• The middle digit is not divisible by four

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CCSS.4.NBT.A.1

What is the last two-digit number in 4,664,017?

• 07

• 40

• 17

• 64

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CCSS.4.NBT.A.1