Whole Numbers and Basic Operations

The video tutorial explains the properties of whole numbers under various arithmetic operations. It covers addition, subtraction, multiplication, and division, highlighting that whole numbers are closed under addition and multiplication but not under subtraction and division. The concept of undefined division by zero is also introduced.

What is the result of adding two whole numbers?

• A fraction

• A negative number

• A decimal

• A whole number

Which of the following is a property of whole numbers under addition?

• They are closed under subtraction

• They are closed under multiplication

• They are closed under division

• They are closed under addition

What is the sum of 22 and 33?

• 44

• 55

• 66

• 77

Are whole numbers closed under subtraction?

• Yes, always

• No, never

• Yes, but only sometimes

• No, because subtraction can result in negative numbers

What happens when you subtract a larger whole number from a smaller one?

• You get zero

• You get a negative number

• You get a fraction

• You get a whole number

What is the result of 35 minus 20?

• 25

• 20

• 15

• 10

What is the result of 5 minus 8?

• 3

• 0

• Undefined

• -3

What is the result of 1,000 minus 999?

• 3

• 2

• 1

• 0

What is the result of 100 minus 50?

• 100

• 0

• -50

• 50

Are whole numbers closed under multiplication?

• No, because multiplication can result in fractions

• Yes, but only sometimes

• No, never

• Yes, always