Adding dollar bills

Front

What is the sum of $5 and $4?

Back

$9

Front

What is the sum of $3 and $2?

Back

$5

Front

What is the sum of $1 and $3?

Back

$4

Front

What is the sum of $4 and $2?

Back

$6

Front

What is the sum of $4 and $4?

Back

$8

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.

Front

What is the symbol used for addition?

Back

The symbol for addition is '+'.

Front

If you have $10 and you spend $3, how much do you have left?

Back

You have $7 left.

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.

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.