Even and Odd Patterns

Which statement is true about the following expressions?

2 + 5

4 + 7

6 + 9

• When you subtract an even number to an odd number your sum is even.

• When you subtract an even number to an odd number your sum is odd.

• When you add an even number to an odd number your sum is even.

• When you add an even number to an odd number your sum is odd.

Tags

CCSS.3.OA.D.9

Mrs. Douglas wrote the following expressions under the ELMO. What conjecture can be said?

2 + 2

7 + 7

14 + 14

• A number added to itself will have an odd sum.

• A number that is doubled will have an odd product.

• A number added to itself will have an even sum.

• The difference of 2 even numbers is always zero.

Tags

CCSS.3.OA.D.9

Is 58 even or odd?

• The digit in the ones place is 5, so the number is even.

• The digit in the ones place is 5, so the number is odd.

• The digit in the ones place is 8, so the number is even.

• The digit in the ones place is 8, so the number is odd.

Is 37 even or odd?

• The digit in the ones place is 7, so the number is even.

• The digit in the ones place is 7, so the number is odd.

• The digit in the ones place is 3, so the number is even.

• The digit in the ones place is 3, so the number is odd.

Look at each factor and describe the product.

3 x 7 = ___

• 3 and 7 are both even factors, so the product will be even.

• 3 and 7 are both odd factors, so the product will be odd.

• 3 is even, but 7 is odd. The product will be even.

• 3 is odd, but 7 is even. The product will be even.

Tags

CCSS.3.OA.D.9

30x3=

• 90

• 900

• 330

• 300

Tags

CCSS.3.NBT.A.3

What is the missing number?

• 10

• 18

• 14

• 8

Tags

CCSS.5.OA.B.3

When multiplying an odd number by an odd number, the product will always...

• be even

• be odd

• end in 5 or 0

• end in 0

Tags

CCSS.3.OA.D.9

Which is true when any number is multiplied by 2?

• The answer is odd.

• The answer is even.

• The answer will have all the same digits.

• The answer becomes a two-digit number.

Tags

CCSS.3.OA.D.9

What rule applies to the table?

• multiply by 5

• multiply by 4

• add 5

• add ten

Tags

CCSS.5.OA.B.3