Understanding Integer Operations

Mrs. Bailey reviews integer operations, focusing on common mistakes with signs. She provides examples of adding, subtracting, multiplying, and dividing integers, emphasizing the importance of sign consistency. The video includes strategies for handling negative numbers and determining the correct sign in complex operations. Students are encouraged to use direction arrows for addition and subtraction and a tic-tac-toe board for multiplication and division to ensure accuracy.

What should you remember when adding and subtracting integers?

• Use a calculator for all operations.

• Ignore the signs and focus on the numbers.

• Follow the rules about the sign.

• Always add the numbers regardless of the sign.

If you have two negative numbers, what should you do?

• Add the numbers and change the sign to positive.

• Subtract the numbers and keep the positive sign.

• Subtract the numbers and keep the negative sign.

• Add the numbers and keep the negative sign.

In the example of -2 minus 9, what is the correct result?

• -7

• 11

• -11

• 7

When subtracting a larger number from a smaller one, how do you determine the sign?

• The sign is always the same as the larger number.

• The result is always positive.

• The result is always negative.

• The sign depends on which direction you moved more on the number line.

What is the result of 6 minus 11?

• -5

• 5

• 17

• -17

How do you handle the signs when multiplying two negative numbers?

• The result is the same as the larger number.

• The result is zero.

• The result is positive.

• The result is negative.

What is the product of -2 and -8?

• 16

• -16

• 10

• -10

What is the result of 20 divided by -4?

• -5

• 5

• -4

• 4

What should you use to determine the sign when multiplying integers?

• A calculator

• A multiplication table

• A number line

• A tic-tac-toe board

What is the key takeaway for adding and subtracting integers?

• Always use a calculator.

• Focus on the numbers, not the signs.

• Use direction arrows and follow the rules.

• Ignore the rules and guess the sign.