Expressions and Equations Practice

This video tutorial covers a sixth-grade math lesson on writing expressions using letters and numbers. It includes explanations of ten problems, each demonstrating different mathematical operations such as addition, subtraction, multiplication, division, and exponents. The tutorial emphasizes keeping quantities together and understanding terms like 'less than' and 'sum of'.

What is the expression for 'four less than the quantity of eight times n'?

• n - 8

• 8 - n

• 4 - 8n

• 8n - 4

How would you express 'six times the sum of y and 11'?

• 6y + 11

• y + 11 + 6

• 6(y + 11)

• 6 + y + 11

What is the expression for 'the square of M reduced by 49'?

• M^2 + 49

• M - 49^2

• M^2 - 49

• 49 - M^2

How would you write 'the quotient of the quantity of 17 plus p divided by 8'?

• (17 + p) / 8

• 17 / (p + 8)

• 17 + p / 8

• 8 / (17 + p)

If Jim and Steve combine their tips and split them equally, how is this expressed?

• J + s

• J - s / 2

• (J + s) / 2

• 2(J + s)

What is the expression for Owen quadrupling his cards and adding Ian's cards?

• 4(C + I)

• C + 4I

• 4C + I

• C - 4I

How would you express 'Rey runs four times as many miles as Madison and Aaliyah combined'?

• 4M + A

• M + 4A

• 4(M + A)

• M + A + 4

How is 'Mary Jo decreases the retail price of her groceries by $125' expressed?

• G + 125

• G - 125

• 125 - G

• G / 125

What is the formula for calculating the area of a triangle?

• (Base * Height) / 2

• Base * Height

• 2(Base + Height)

• Base + Height

How would you express '10 degrees colder than twice yesterday's temperature'?

• 10 - 2T

• 2T - 10

• 2T + 10

• T - 10