Adding and Subtracting Integers

This video tutorial covers the addition of integers, focusing on scenarios with common and different signs. It explains the use of absolute values and number lines to simplify the process. The tutorial includes examples and a word problem to illustrate the concepts, providing a comprehensive understanding of integer addition.

What is the first step in adding two integers with the same sign?

• Subtract the smaller number from the larger number.

• Add the absolute values of the numbers.

• Multiply the numbers together.

• Divide the larger number by the smaller number.

What is the result of adding -7 and -9?

• 16

• 2

• -2

• -16

When adding integers on a number line, what direction do you move for a positive number?

• Up

• Down

• Right

• Left

When using a number line, what does moving to the left represent?

• Subtracting a negative number

• Adding a positive number

• Adding a negative number

• Subtracting a positive number

In the example of adding 5 and -3 using a number line, where do you end up?

• At 8

• At 2

• At -2

• At 5

What is the second step in adding integers with different signs?

• Divide the larger number by the smaller number.

• Subtract the smaller number from the larger number.

• Add the numbers together.

• Multiply the numbers.

How do you determine the sign of the result when adding integers with different signs?

• Always use a positive sign.

• Use the sign of the number with the larger absolute value.

• Use the sign of the number with the smaller absolute value.

• Always use a negative sign.

What is the recommended approach for adding multiple integers with mixed signs?

• Add all numbers together at once.

• Multiply all numbers together.

• Group numbers with like signs first, then combine the results.

• Subtract all negative numbers from positive numbers.

In the word problem, what is the first step to find the total earnings from 2000 to 2003?

• Multiply all earnings together.

• Add the negative numbers together first.

• Subtract the smallest earning from the largest.

• Divide the total earnings by the number of years.

What is the final step in solving the word problem about Acme Shipping Company's earnings?

• Multiply the total by the number of years.

• Subtract the total negative earnings from the total positive earnings.

• Add all earnings together.

• Divide the total by the number of years.