Calculating Area and Distributive Property

This video tutorial covers Unit 6, Lesson 9 on the distributive property. It includes selecting expressions for the area of a triangle, calculating 19 times 50 using diagrams, and applying the distributive property to various calculations. The lesson also involves real-life math problems like calculating the cost of popcorn for friends and solving percentage and age-related problems. The tutorial concludes with a graphical representation of expressions and a call to action.

Which of the following expressions correctly represents the area of a large outer triangle?

• 5 times (2 + 4)

• 5 times 2 plus 5 times 4

• 5 times 6

• 5 times 2 plus 4

How can you calculate 19 times 50 using the distributive property?

• Divide 19 by 50 and multiply by 100

• Multiply 19 by 50 directly

• Find 20 times 50 and subtract 50

• Find 10 times 50 and add 9 times 50

What is the result of 98 times 24 using the distributive property?

• 2450

• 2352

• 2400

• 2300

What is the value of 21 times 15 using the distributive property?

• 315

• 320

• 310

• 300

What is the result of 51 hundredths times 40?

• 20.4

• 21.4

• 19.4

• 22.4

How can you mentally calculate the cost of 8 bags of popcorn priced at $2.99 each?

• Multiply 8 by 3 and add 8 cents

• Multiply 8 by 2 and add 99 cents

• Multiply 8 by 2.99 directly

• Multiply 8 by 3 and subtract 8 cents

What is the equivalent of a + a + a + a when a is 2?

• 4

• 8

• 6

• 10

If 120% of x equals 78, what is the value of x?

• 60

• 78

• 70

• 65

How old will Kieran's aunt be when Kieran is 15 years old?

• 35

• 32

• 30

• 28

How old would Kieran be when his aunt is 60 years old?

• 42

• 45

• 43

• 40