Front

What is the sum of 30 and 10?

Back

40

Tags

CCSS.2.NBT.B.5

Front

Calculate 12 + 14.

Back

26

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Front

What do you get when you add 44 and 10?

Back

54

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Find the sum of 19 and 20.

Back

39

Tags

CCSS.1.OA.A.1

Front

If Mr. Cooper has 50 cookies and Ms. Carroll gives him 10 more, how many cookies does he have in total?

Back

60

Tags

CCSS.2.OA.A.1

Front

What is the definition of addition?

Back

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

Tags

CCSS.1.OA.A.1

Front

What is a two-digit number?

Back

A two-digit number is a number that has two digits, ranging from 10 to 99.

Tags

CCSS.1.NBT.A.1

Front

What is the commutative property of addition?

Back

The commutative property states that changing the order of the addends 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 in addition does not change the sum (e.g., (a + b) + c = a + (b + c)).

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 (tens and ones) and add each column, carrying over if necessary.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5