Adding doubles plus 1

Front

What is the result of adding 8 and 9?

Back

17

Tags

CCSS.1.OA.A.1

Front

What is the result of adding 1 and 2?

Back

3

Tags

CCSS.1.OA.A.1

Front

What is the result of adding 3 and 4?

Back

7

Front

What is the result of adding 5 and 6?

Back

11

Tags

CCSS.2.OA.C.3

Front

What is the result of adding 7 and 6?

Back

13

Tags

CCSS.2.OA.C.3

Front

What is the definition of addition in mathematics?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Tags

CCSS.5.NBT.B.7

Front

What is the commutative property of addition?

Back

The commutative property states that changing the order of the numbers being added does not change the sum (e.g., a + b = b + a).

Tags

CCSS.1.OA.B.3

Front

What is the associative property of addition?

Back

The associative property states that the way in which numbers are grouped when adding does not change the sum (e.g., (a + b) + c = a + (b + c)).

Tags

CCSS.1.OA.B.3

Front

What is the identity property of addition?

Back

The identity property states that adding zero to any number does not change the number (e.g., a + 0 = a).

Tags

CCSS.1.OA.B.3

Front

How do you add two-digit numbers?

Back

To add two-digit numbers, align the numbers by place value, add the digits in the ones place, carry over if necessary, and then add the digits in the tens place.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2