Writing Numerical Expressions Explained

The video tutorial by Mr. J covers how to write numerical expressions from given phrases. It emphasizes the importance of recognizing keywords to determine the correct mathematical operations. The tutorial provides examples for addition, subtraction, division, and multiplication, explaining how to translate phrases into numerical expressions. It also highlights different ways to represent operations like division and multiplication. The video concludes with a summary of the key points discussed.

What is the main purpose of learning to write numerical expressions from phrases?

• To improve handwriting

• To solve math problems and understand situations

• To memorize math formulas

• To learn new languages

What does the keyword 'sum' indicate in a numerical expression?

• Addition

• Division

• Subtraction

• Multiplication

How would you write the expression for '82 decreased by 34'?

• 34 + 82

• 34 - 82

• 82 - 34

• 82 + 34

Which of the following represents '21 divided by 7'?

• 21 / 7

• 21 * 7

• 21 - 7

• 21 + 7

What is another way to write '21 divided by 7'?

• 21 * 7

• 21 - 7

• 21 / 7

• 21 + 7

What does the keyword 'product' indicate in a numerical expression?

• Addition

• Division

• Multiplication

• Subtraction

Which of the following is NOT a way to represent multiplication?

• Using a plus sign

• Using a filled-in circle

• Using an asterisk

• Using parentheses

How would you write '25 less than 46'?

• 25 + 46

• 25 - 46

• 46 - 25

• 46 + 25

What does the keyword 'quotient' indicate in a numerical expression?

• Division

• Multiplication

• Addition

• Subtraction

How would you write '8 increased by 3'?

• 8 - 3

• 8 * 3

• 8 / 3

• 8 + 3