math for 1st grade

Front

What is addition?

Back

Addition is a mathematical operation that combines two or more numbers to get a total or sum.

Front

What is the sum of 5 and 8?

Back

The sum of 5 and 8 is 13.

Front

What is the sum of 3 and 10?

Back

The sum of 3 and 10 is 13.

Front

What is the sum of 5 and 10?

Back

The sum of 5 and 10 is 15.

Front

What is the sum of 5 and 2?

Back

The sum of 5 and 2 is 7.

Front

How do you write the addition equation for 5 and 8?

Back

The addition equation for 5 and 8 is written as 5 + 8 = 13.

Front

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

Back

A number line is a straight line with numbers placed at equal intervals. It is used in addition to visually represent the process of combining numbers.

Front

What is a word problem in math?

Back

A word problem is a mathematical problem that is presented in the form of a story or real-life scenario.

Front

How can you check if your addition is correct?

Back

You can check your addition by using the inverse operation, subtraction, to see if subtracting one of the addends from the sum gives you the other addend.

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the addends does not change the sum (e.g., 3 + 5 = 5 + 3).