2 digit addition

Front

What is the sum of 31 and 23?

Back

54

Front

What is the result of adding 72 and 12?

Back

84

Front

Calculate the sum of 19 and 28.

Back

47

Front

What do you get when you add 30 and 40?

Back

70

Front

What is 66 plus 13?

Back

79

Front

What is the definition of addition?

Back

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

Front

What is a two-digit number?

Back

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

Front

How do you carry over in addition?

Back

When the sum of a column exceeds 9, you carry over the tens digit to the next column.

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).

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)).