Adding within 100

Front

What is the sum of 20 and 12?

Back

32

Tags

CCSS.2.NBT.B.5

Front

What is the sum of 33 and 18?

Back

51

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 66 and 14?

Back

80

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 14 and 16?

Back

30

Tags

CCSS.2.NBT.B.5

Front

What is the sum of 13 and 50?

Back

63

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

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 the commutative property of addition?

Back

The commutative property states that changing the order of the numbers in an addition problem does not change the sum.

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 an addition problem does not change the sum.

Tags

CCSS.1.OA.B.3

Front

How do you add two-digit numbers?

Back

Align the numbers by place value, add the digits in each column starting from the right, and carry over if necessary.

Tags

CCSS.2.NBT.B.6

Front

What is a number line and how is it used in addition?

Back

A number line is a visual representation of numbers in a straight line, used to help understand addition by counting forward.

Tags

CCSS.2.MD.B.6