Divisibility Rules

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is 0, 2, 4, 6, or 8.

Tags

CCSS.3.OA.D.9

Front

What is the divisibility rule for 4?

Back

A number is divisible by 4 if the last two digits form a number that is divisible by 4.

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is 0 or 5.

Tags

CCSS.2.OA.C.3

Front

What is the divisibility rule for 10?

Back

A number is divisible by 10 if its last digit is 0.

Tags

CCSS.3.OA.D.9

Front

What is the divisibility rule for 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Tags

CCSS.4.OA.B.4

Front

What is the divisibility rule for 9?

Back

A number is divisible by 9 if the sum of its digits is divisible by 9.

Tags

CCSS.3.OA.D.9

Front

Is 105 divisible by 2?

Back

No, 105 is not divisible by 2 because it is an odd number.

Front

Is 19,584 divisible by 9?

Back

Yes, 19,584 is divisible by 9 because the sum of its digits (1+9+5+8+4=27) is divisible by 9.

Tags

CCSS.4.OA.B.4

Front

What does it mean if a number is divisible by another number?

Back

It means that when you divide the first number by the second, there is no remainder.

Front

What is the significance of the last digit in determining divisibility by 2?

Back

The last digit determines if the number is even or odd, which is essential for checking divisibility by 2.

Tags

CCSS.2.OA.C.3