Adding and Subtracting Positive and Negative Numbers Practice

What analogy is used to explain adding and subtracting positive and negative numbers?

• A plane in the sky

• A car on a road

• A boat on a river

• A submarine with anchors and floats

How can you rewrite the subtraction problem 5 - 2?

• 5 + 2

• 5 - 2

• 5 - (-2)

• 5 + (-2)

What is the equivalent addition problem for 2 - 5?

• 2 + 5

• 2 - 5

• 2 + (-5)

• 2 - (-5)

If you start at -2 and take away 5 anchors, what is the equivalent addition problem?

• -2 - 5

• -2 + (-5)

• -2 - (-5)

• -2 + 5

What is the result of 3 - (-2)?

• 1

• 0

• 3

• 5

Why do mathematicians use parentheses around negative numbers?

• To make the work look neat

• To separate different operations

• To change the value of the number

• To indicate multiplication

What is the equivalent addition problem for 4 - 5?

• 4 - (-5)

• 4 + (-5)

• 4 - 5

• 4 + 5

If two numbers have the same sign, what should you do to find the result?

• Add the numbers and keep the sign the same

• Subtract the numbers and keep the sign the same

• Subtract the numbers and change the sign

• Add the numbers and change the sign

What is the result of -6 + (-2)?

• -8

• -4

• 8

• 4

If a number does not have a sign in front of it, what is it assumed to be?

• Negative

• Zero

• Positive

• Undefined