Math Facts

What is the commutative property of addition?

• The commutative property states that changing the order of the addends does not change the sum (e.g., a + b = b + a).

• The commutative property states that the sum of two numbers is always greater than either number.

• The commutative property states that the sum of two numbers is equal to their product.

• The commutative property states that the order of operations must be followed when adding numbers.

Define addition in mathematics.

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

• Addition is the process of finding the difference between two numbers.

• Addition is the operation of multiplying two or more numbers together.

• Addition is the method of dividing a number into equal parts.

What is the sum of 5 and 9?

• 12

• 13

• 14

• 15

What is the sum of 6 and 7?

• 11

• 12

• 13

• 14

What is a mathematical operation?

• A calculation that combines numbers in a specific way, such as addition, subtraction, multiplication, or division.

• A method of solving equations without using numbers.

• A technique for graphing functions on a coordinate plane.

• A process of converting fractions into decimals.

What is a digit?

• A symbol used in mathematics to represent a variable.

• A numeral from 0 to 9 used to represent numbers.

• A letter in the alphabet used for counting.

• A mathematical operation involving addition.

What is the identity property of addition?

• The sum of any number and one is the number itself (e.g., a + 1 = a).

• The sum of any number and zero is the number itself (e.g., a + 0 = a).

• The sum of any number and two is the number itself (e.g., a + 2 = a).

• The sum of any number and negative one is the number itself (e.g., a + -1 = a).

How do you solve a basic addition problem?

• Align the numbers vertically by place value and add each column starting from the right.

• Multiply the numbers together and then add the result to the first number.

• Subtract the smaller number from the larger number to find the sum.

• Write the numbers in a horizontal line and add them from left to right.

What is a sum?

• A sum is the result of adding two or more numbers together.

• A sum is the total of subtracting two numbers.

• A sum is the average of two or more numbers.

• A sum is the product of two or more numbers.

What is a two-digit number?

• A number that has one place, ranging from 0 to 9.

• A number that has two places, ranging from 10 to 99.

• A number that has three places, ranging from 100 to 999.

• A number that can be negative or positive, but must have two digits.