Math 3: Number Properties

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.

What is the divisibility rule for 5?

• The digits must add up to 10.
• The last digit needs to be a 5 or 0.
• The last digit can only be a 5.
• The sum of the digits need to be divisible by 5.

Is 1,284,604 divisible by 2?

• Yes, because the sum of the digits is 20, which is an even number

• No, because 4 is an odd number

• Yes, because 4 is an even number

• No, because the it is not divisible by 3

Tags

CCSS.6.NS.B.2

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

Choose a prime number from the list.

• 7

• 8

• 9

• 10

Tags

CCSS.4.OA.B.4

which of the following is not a prime number?

• 41

• 43

• 45

• 47

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 19

• 39

• 49

• 69

Tags

CCSS.4.OA.B.4

What is 9.2 x 10⁴ in standard notation?

• 9,200
• 92,000
• 920,000
• 920

Tags

CCSS.8.EE.A.3

What is 416,000,000 in scientific notation?

• 4.16 x 10⁸
• 4.16 x 10⁹
• 4.16 x 10^-8
• 4.16 x 10^-9

Tags

CCSS.8.EE.A.3

What is 6⁷in expanded form?

• 6 x 6 x 6 x 6 x 6 x 6
• 6 + 6 + 6 + 6 + 6 + 6
• 6 x 7