Operations with Integers and Methods

Miss Blatant reviews integer operations in preparation for the STAR test. She covers the order of operations (PEMDAS) and explains methods for adding, subtracting, multiplying, and dividing integers. Techniques include the key change, scoreboard method, and using a number line. For multiplication and division, she introduces the sleeping baby and grid methods. The video concludes with encouragement and reminders of integer operation rules.

What is the first step in solving expressions according to PEMDAS?

• Parentheses

• Multiplication

• Addition

• Subtraction

In the 'keep-change-change' method, what do you do with the sign of the first number?

• Divide it

• Keep it

• Change it

• Multiply it

Using the 'keep-change-change' method, what is the result of 5 - (-3)?

• 2

• 8

• 0

• -8

In the scoreboard method, what determines the sign of the result?

• The last number

• The first number

• The smaller absolute value

• The larger absolute value

Using the scoreboard method, what is the result of 4 + (-7)?

• 3

• -3

• 11

• -11

How does a number line help in understanding integer operations?

• By showing exponents

• By showing multiplication

• By visualizing addition and subtraction

• By dividing numbers

If you start at 4 on a number line and move 7 steps left, where do you end up?

• 11

• 3

• -11

• -3

What is the 'sleeping baby' method used for?

• Multiplying and dividing integers

• Adding integers

• Solving equations

• Subtracting integers

In the grid method for multiplication, what do the diagonal lines represent?

• Exponents

• Zero

• Positive signs

• Negative signs

What is the result of 2 times -5?

• 0

• -10

• 5

• 10