Properties of Numbers: Associative Property of Addition

The video uses gummy bears to illustrate the associative property of addition, showing that numbers can be grouped in different ways without changing the sum. It explains the concept using examples and demonstrates how parentheses are used in mathematical expressions to group numbers, emphasizing that the sum remains the same regardless of grouping.

How many gummy bears are there in total when grouped differently?

• 6

• 9

• 7

• 8

What does the associative property of addition allow you to do with numbers?

• Add them in any order

• Subtract them in any order

• Divide them in any order

• Multiply them in any order

In the expression 2 + 7 + 3, what is the sum when you group 2 and 7 first?

• 13

• 10

• 11

• 12

What is the result when you group 7 and 3 first in the expression 2 + 7 + 3?

• 9

• 12

• 11

• 10

Which of the following is true according to the associative property of addition?

• The sum is always zero

• The sum is always negative

• The sum remains the same regardless of grouping

• The sum changes with different groupings