Mental math : single digit addition

Front

What is the result of adding 8 and 3?

Back

11

Front

What is the sum of 2 and 3?

Back

5

Front

What do you get when you add 8 and 1?

Back

9

Front

What is 7 plus 6?

Back

13

Front

What is the result of 2 plus 6?

Back

8

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 single-digit number?

Back

A single-digit number is any number from 0 to 9.

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)).

Front

How can you use mental math to add single-digit numbers quickly?

Back

You can use strategies like counting on, using number bonds, or breaking numbers apart to make them easier to add.