Common Factors and Basic Operations

This video tutorial covers common factors, greatest common factors, and their applications in real-life scenarios such as grouping students and analyzing bank transactions. It also includes exercises on finding quotients and comparing animal speeds to calculate distances.

What is the main topic of Unit Seven Lesson 16?

• Fractions

• Common factors

• Geometry

• Prime numbers

How many pencils and stickers are in each of the two bags?

• 12 pencils and 18 stickers

• 10 pencils and 15 stickers

• 8 pencils and 12 stickers

• 6 pencils and 9 stickers

Which numbers are both 24 and 36 divisible by?

• 2, 4, 5, 6

• 2, 3, 4, 6

• 1, 2, 3, 5

• 3, 5, 7, 9

What is the greatest common factor of 42 and 15?

• 5

• 3

• 1

• 7

What is the greatest common factor of 42 and 50?

• 1

• 5

• 2

• 10

How many groups can be formed with 90 sixth graders and 75 seventh graders?

• 15

• 25

• 10

• 20

If 15 groups are formed, how many sixth graders are in each group?

• 5

• 6

• 7

• 8

Which bank transaction represents a positive value?

• Saturday's weekend spending

• Tuesday's ATM withdrawal

• Thursday's cell phone charge

• Wednesday's merchandise return

Which day had a $125 deduction?

• Monday

• Tuesday

• Thursday

• Friday

What is the result of 1/7 divided by 1/8?

• 8/7

• 1/8

• 7/8

• 1/56