addition and subtraction

Front

What is the result of subtracting a smaller number from a larger number?

Back

The result is called the difference.

Front

What is the sum of 35 and 13?

Back

The sum is 48.

Front

How do you calculate the change in temperature?

Back

Subtract the lower temperature from the higher temperature.

Front

If Mary had 24 cookies and made 31 more, how do you find the total number of cookies she has now?

Back

Add the number of cookies she had to the number she made: 24 + 31 = 55.

Front

What is the result of 39 + 21?

Back

The result is 60.

Front

What is the definition of addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is the definition of subtraction?

Back

Subtraction is the process of finding the difference between two numbers by removing one from the other.

Front

What is the sum of 23 and 48?

Back

The sum is 71.

Front

How do you represent an addition problem in equation form?

Back

An addition problem can be represented as a + b = c, where a and b are the numbers being added, and c is the sum.

Front

What is the principle of commutativity in addition?

Back

The principle of commutativity states that changing the order of the numbers in an addition problem does not change the sum.