Basic Addition Facts

How can you check your addition?

• By using the inverse operation of subtraction to see if the original numbers can be retrieved from the sum.

• By multiplying the sum by two to see if it matches the original numbers.

• By adding the sum to a random number and checking if it remains the same.

• By dividing the sum by the number of addends to find the average.

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

• A number line is a visual representation of numbers in a straight line, used to illustrate addition by moving to the right for positive sums.

• A number line is a tool used for measuring distances in geometry.

• A number line is a series of dots representing different mathematical operations.

• A number line is a circular diagram used to show relationships between numbers.

What is the associative property of addition?

• The associative property states that the order of numbers does not affect the sum (e.g., a + b = b + a).

• The associative property states that the way in which numbers are grouped when adding does not change the sum (e.g., (a + b) + c = a + (b + c)).

• The associative property states that adding zero to a number does not change the number (e.g., a + 0 = a).

• The associative property states that the sum of two negative numbers is always positive.

What is the sum of 3 and 5?

• 6

• 7

• 8

• 9

What is the sum of 2 and 8?

• 8

• 9

• 10

• 11

What is the sum of 5 and 5?

• 8

• 9

• 10

• 11

What is the difference between addition and subtraction?

• Addition combines numbers to find a total, while subtraction removes one number from another to find the difference.

• Addition is the process of dividing numbers, while subtraction is the process of multiplying them.

• Addition involves finding the average of numbers, while subtraction is about finding the maximum value.

• Addition and subtraction are the same operations, just performed in different orders.

What are some real-life applications of addition?

• Budgeting and cooking (measuring ingredients)

• Only used in mathematics classes

• Only for calculating distances

• Used exclusively in scientific research

What is a word problem in the context of addition?

• A mathematical problem expressed in words, requiring the application of addition to find a solution.

• A problem that involves only numerical calculations without any context.

• A type of problem that can only be solved using subtraction.

• A question that requires a yes or no answer.

What is the sum of 6 and 3?

• 7

• 8

• 9

• 10