Exploring Writing Expressions in 5th Grade Math

This video tutorial by Mr. J covers writing complex mathematical expressions with two steps, building on basic concepts from a previous video. It reviews key terms like variables and operation vocabularies, and provides examples of expressions involving addition, multiplication, subtraction, and division. The video emphasizes the importance of the order of operations and using parentheses to ensure correct calculations. Viewers are encouraged to write along and complete a mastery check to reinforce learning.

What is a variable in a math problem?

• A constant value

• A letter representing a missing number

• A symbol for addition

• A number that is always known

What is the term used for the answer to a multiplication problem?

• Difference

• Sum

• Product

• Quotient

In the expression 'add eight and three then multiply by six', what should be done first?

• Multiply eight by three

• Add eight and three

• Multiply by six

• Subtract eight from three

Why are parentheses important in the expression 'add eight and three then multiply by six'?

• They indicate multiplication

• They show which operation to do first

• They are not necessary

• They are used for subtraction

How should you write the product of 4 and M?

• 4 - M

• 4M

• 4 x M

• 4 + M

What is the correct way to write '7 minus 2 multiplied by n'?

• (7 - 2) x n

• 7 - (2 x n)

• 7 x 2 - n

• 7 - 2 + n

In the expression '3 taken away from 6 then multiplied by 7', what is the first step?

• Add 3 to 6

• Multiply by 7

• Subtract 3 from 6

• Multiply 3 by 6

Which symbol should be used for multiplication in algebraic expressions?

• -

• dot (·)

• +

• x

How do you write the expression for 'the product of 2 and X plus 25'?

• 2 + X + 25

• 2 + X - 25

• 2X + 25

• 2X - 25

What should you always do after writing an expression?

• Solve it immediately

• Read back the problem to ensure accuracy

• Ignore the parentheses

• Change the variables