Divisibility Rules

What is the divisibility rule for 4?

• The last two digits form a number divisible by 4

• The last digit is a number divisible by 4

• The last digit is even

• The last digit is zero

Tags

CCSS.3.OA.D.9

What is the divisibility rule for 5?

• The sum of the digits is divisible by 5.

• The last digit is a 5.

• The last digit is 5 or zero.

• The last digit is zero

Tags

CCSS.5.OA.B.3

What is the rule for divisibility by 3?

• The number must end in 3, 6, or 9.

• The sum of the digits must equal 3.

• The sum of the digits must be divisible by 3.

• There must be at least one 3 in the number.

Tags

CCSS.4.OA.B.4

A number is divisible by 6 if it is divisible by

• 2 and 3
• 2 and 4
• 9 and 1
• 5 and 10

Tags

CCSS.3.OA.D.9

What is the divisibility rule of 9?

• The sum of the digits is a number divisible by 3

• The sum of the digits is a number divisible by 9

• The last two digits form a number divisible by 3

• The last digit is 9.

Tags

CCSS.5.OA.B.3

A number is divisible by 10 if

• It is even

• It ends in 0

• It ends in 0 or 5

• The sum of the digits is a multiple of 10

Tags

CCSS.4.OA.B.4

Is 81 divisible by 3?

• Yes, because the sum of the digits is 9, which is divisible by 3

• No, because 81 is an odd number

• Yes, because 81 is an odd number

• No, because 81 does not end in 3

Tags

CCSS.4.OA.B.4

Which of the following is an even number?

• 1
• 9
• 0

• 5

Tags

CCSS.2.OA.C.3

True or False...

40,500 is divisible by 6

• True

• False

All of these numbers are divisible by 5 except...

• 1050

• 155

• 980

• 2938

Tags

CCSS.4.OA.B.4