Using Parentheses to Make Equations True

The video tutorial explains how adding parentheses can change the outcome of mathematical equations. It demonstrates this concept through various examples, including story problems and specific equations. The tutorial emphasizes the importance of the order of operations and how parentheses can be used to group numbers to achieve the desired result. By the end of the lesson, viewers will understand how to manipulate equations to make them true by strategically placing parentheses.

Why are parentheses important in mathematical equations?

• They are used to separate numbers.

• They are optional and do not affect the outcome.

• They help in determining the order of operations.

• They make equations look more complex.

In the expression 7 times (4 minus 3), what is the correct result?

• 7

• 1

• 25

• 28

How can you make the equation 15 minus 7 minus 2 equal 10?

• Subtract 7 from 15 first.

• Add 7 and 2 first.

• Subtract 2 from 7 first.

• Add 15 and 7 first.

What is the result of (18 plus 6) divided by 3?

• 8

• 24

• 6

• 2

In the equation 4 plus 2 times 3, how can you use parentheses to make it equal 18?

• Add 4 and 2 first, then multiply by 3.

• Add 4 and 3 first, then multiply by 2.

• Multiply 4 by 2 first, then add 3.

• Multiply 2 by 3 first, then add 4.