Adding and Subtracting Integers

2 + (-1) is the same as

2 + (-1) =

4 + (-2) is the same as

4 + (-2) =

A helicopter takes off at the top of a 130 foot building. It raises 90 more feet high. How far away is the helicopter from the ground?

A dirt bike is on top of a 20 foot hill. It lands in the bottom of a pit, which is 25 feet below ground level.

How much feet did the dirt bike drop from the top of the bill to the bottom of the pit?

A submarine has an elevation of -240 feet. It descends another 65 feet down.

What is the new depth of the submarine?

-4 + (-3) =

2 - (-3) is the same as

2 - (-3) =

3 - (-4) is the same as

3 - (-4) =

5 + (-2) - 4 =

-3 + 2 - (-4) =

-2 + (-4) - 3 =

The temperature was at -10° F. The temperature dropped by 7° F. What is the new temperature?

The temperature was at -7° F. The temperature increased by 10° F. What is the new temperature?

Same signs (++ or - -) means we are __________

4 + 2 is an example of

4 - (-3) is subtracting a negative. This is an example of

-4 + -3 is adding a negative. This is an example of

-3 - (-3) is subtracting a negative. This is an example of

3 + (-3) is adding a negative. This is an example of

When we have different sign (adding a negative, or subtracting a positive) - we must ________

3 + (-2) is an example of different signs. Therefore, we can re-write it as _____

Which expression is equivalent to -3.5 + (-4.24)

Which expression is equivalent to -4.2 - (-2.5)

Which expression is equivalent to 6.5 + (-3.5)

Which expression is equivalent to -4.5 - 3.3

Which is expression is equal to -9?

Which is expression is equal to 10?

Which is expression is equal to -5?

Which is expression is equal to -6?

What point is 9 units away from zero?

What two points are both 5 units away from zero?

What pair of points would add together to equal zero?

What pair of points would add together to equal zero?

Which expression represents the distance between E and D?

Which expression represents the distance between C and D?

Which expression represents the distance between P and E?

x + y = 0

What are possible answers for x and y?

x + y = 0

What are possible answers for x and y?

x + y = 0

What else is true about x and y?

p - x will always be

z - y will always be

z - y will always be

p and z are both equal distances from zero. What statement below is true?