Exploring Integer Operations and Number Sense

What is the key to understanding higher-level math?

• Memorizing formulas

• Practicing daily

• Using a calculator

• Understanding numbers well

Which of the following is an example of an imaginary number?

• 3.14

• i

• 2

• 0.5

Which of the following is a rational number?

• 0.37

• π (pi)

• 3/4

• √2

What is the main difference between whole numbers and natural numbers?

• Natural numbers include zero, whole numbers do not

• Whole numbers include zero, natural numbers do not

• Whole numbers are always positive, natural numbers can be negative

• Natural numbers are always positive, whole numbers can be negative

Which of the following is an integer?

• 0.5

• 1.2

• 3/4

• 100

How can you simplify the problem 52 + 78?

• By ignoring the smaller numbers

• By guessing the answer

• By breaking it into smaller parts like 50 + 70 and 2 + 8

• By using a calculator

What does a negative number imply?

• A gain

• A debt

• A fraction

• A decimal

What is the result of 10 - 3?

• 7

• 13

• 3

• 10

What happens when you subtract a negative number?

• It becomes a larger negative number

• It becomes a positive number

• It remains the same

• It becomes zero

What is the result of multiplying -10 by 4?

• 14

• -40

• 40

• -14