DIVISIBILITY RULES FOR 3, 6, 9 QUIZ

Which of the two numbers 522 and 713 is divisible by 3?

What is the divisibility rule for 3?

• Add up the digits. The sum must be even and divisible by 3.
• The digits must add up to 9.
• The last digit must be a 3.
• Add up the digits. The sum must be divisible by 3.

2520 is divisible by 6 because:

• It is divisible by 2 (even) and 5 (ends in a 0 or 5)

• The sum of the digits is 12, a multiple of 6

• It's divisible by 2 (even) and 3 (sum of digits is a multiple of 3)

• The sum of the digits is even

Tags

CCSS.4.OA.B.4

Which number is divisible by 6

• 1782

• 1213

• 536

Tags

CCSS.5.NBT.B.6

Which number is divisible by 9

• 345

• 8522

• 98874

Why does the divisibility rule for 6, that if a number is divisible by 2 and 3 then it is divisible by 6.

• Because 2x3= 6

• 2 and 3 are the prime factors for 6

• You add up all of the digits and then divide by 6.

Tags

CCSS.6.NS.B.4

Which of the following statements is true of this number?

• It is divisible by 3 and 9

• It is divisible by 2, 3, and 6

• It is divisible by 3

• It is prime

What is the divisibility rule for 6?

• It is divisible by 2 and 3

• It is divisible by 3 and 4

• It is divisible by 2 and 4

• The last digit is zero

252 is divisible by 9 because:

• The digits add up to 18.

• The sum of the digits is divisible by 9.

• It's even and the sum of the digits is divisible by 3.

• The sum of the digits is even.

Which of these is divisible by 6?

• 515
• 59
• 2086
• 6312

Tags

CCSS.4.OA.B.4