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Today we will add with negative integers.PowerPoint Presentation

Today we will add with negative integers.

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### Today we will add with negative integers.

Add=to put together

integers=numbers that consist of whole numbers and their opposites

Concept

- When you get older and you start to “collect” credit cards and you start to buy things on “credit” you will be borrowing from the banks.
- You buy an iPod for $199.00
- You now owe $199.00 (-199)
- You buy a laptop for $599.00
- You now owe $599.00 (-599)
- All together you owe $798.00
- (-798)

APK

Add cards and you start to buy things on “credit” you will be borrowing from the banks.

- Add means to put together.

$199.00 + $299.00=$498.00

$300.00 + $600.00=$900.00

Concept

Integer cards and you start to buy things on “credit” you will be borrowing from the banks.

- numbers that consist of whole numbers and their opposites

+5

-5

+500

-500

5

500

Concept

Absolute Value cards and you start to buy things on “credit” you will be borrowing from the banks.

The absolute value of an integer is its distance from zero on the number line.For example, |-3| = 3 and |-5| = 5.

Importance cards and you start to buy things on “credit” you will be borrowing from the banks.

- It will help you be a good “borrower” since you know how much you owe and how much you will have in order to pay.
- It will be on tests and you need to know how to do it!
- What would be other reasons to know how to add integers?

IMP

Let’s watch this on BrainPop! cards and you start to buy things on “credit” you will be borrowing from the banks.

Concept

What does this look like on a number line? cards and you start to buy things on “credit” you will be borrowing from the banks.

+9 + -8

SD

Let’s try one! cards and you start to buy things on “credit” you will be borrowing from the banks.

George owes his friend Jeanne $3. If he borrows another $6, how much will he owe her altogether?

-3 + -6

-9

SD

+5 + - 7 cards and you start to buy things on “credit” you will be borrowing from the banks.

1. Find the absolute value of each integer.

2. Subtract the smaller number from the larger number you get in Step 1.

3. The result from Step 2 takes the sign of the integer with the greater absolute value.

-2

SD

+9 + - 5 cards and you start to buy things on “credit” you will be borrowing from the banks.

1. Find the absolute value of each integer.

2. Subtract the smaller number from the larger number you get in Step 1.

3. The result from Step 2 takes the sign of the integer with the greater absolute value.

+4

SD

- cards and you start to buy things on “credit” you will be borrowing from the banks. 12 + + 5

1. Find the absolute value of each integer.

2. Subtract the smaller number from the larger number you get in Step 1.

3. The result from Step 2 takes the sign of the integer with the greater absolute value.

12 & 5

12 – 5

7

-7

GP

-15 + + 15 cards and you start to buy things on “credit” you will be borrowing from the banks.

1. Find the absolute value of each integer.

2. Subtract the smaller number from the larger number you get in Step 1.

3. The result from Step 2 takes the sign of the integer with the greater absolute value.

15 & 15

15 – 15

0

0

GP

+11 + - cards and you start to buy things on “credit” you will be borrowing from the banks. 13

1. Find the absolute value of each integer.

2. Subtract the smaller number from the larger number you get in Step 1.

3. The result from Step 2 takes the sign of the integer with the greater absolute value.

11 & 13

13 – 11

2

-2

GP

Let’s review! cards and you start to buy things on “credit” you will be borrowing from the banks.

- What does add mean?
To put together.

- What is an integer?
numbers that consist of whole numbers and their opposites.

What is the absolute value of -15? Of -6?

Concept

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