Operations with Negative Numbers

The video tutorial covers the basics of adding and subtracting positive and negative numbers, starting with simple examples and progressing to more complex problems involving larger numbers and decimals. The instructor uses a submarine analogy to explain the concepts, emphasizing the importance of understanding the signs of numbers and how they affect the operations. The video concludes with a summary of the key points and a final problem to reinforce learning.

What is the first step in solving the problem -3 - 10?

• Rewrite it as 3 + 10

• Rewrite it as 3 - 10

• Rewrite it as -3 + (-10)

• Rewrite it as -3 + 10

If a submarine starts at -3 and you add 10 anchors, where will it end up?

• -3

• -13

• 7

• -7

What happens when you subtract a negative number?

• It stays the same

• It becomes zero

• It becomes a negative number

• It becomes a positive number

What is the result of 4 - (-2)?

• -6

• -2

• 2

• 6

When adding numbers with different signs, what should you do?

• Add the numbers

• Divide the numbers

• Subtract the numbers

• Multiply the numbers

What is the result of -132 - (-4)?

• -128

• 136

• 128

• -136

If you start at -54 and subtract 63, where will you end up?

• 9

• -117

• 117

• -9

What is the result of 2.6 + (-3.2)?

• -0.6

• -5.8

• 0.6

• 5.8

What is the first step in solving -4.5 - 5.2?

• Rewrite it as -4.5 + (-5.2)

• Rewrite it as -4.5 + 5.2

• Rewrite it as 4.5 - 5.2

• Rewrite it as 4.5 + 5.2

What is the result of -4.5 + (-5.2)?

• -9.7

• 9.7

• 1.3

• -1.3