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Operations with Integers

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Presentation on theme: "Operations with Integers"— Presentation transcript:

1 Operations with Integers
0-3 Operations with Integers

2 Example 1 pg. P11 Add Integers with the same sign
Use the number line to find −2+3.

3 Example 1 pg. P11 Add Integers with the same sign
Use the number line to find − −

4 Absolute Value The distance a number is from zero on the number line.

5 Rules for adding integers
Integers with the same sign (++ or −−) Add the numbers and keep the sign. Integers with different signs (+−or −+) Subtract the smaller value from the larger value and take the sign of the largest value

6 Example 2 pg. P11 Add integers using absolute value
Find −15+ −4 .

7 Example 2 pg. P11 Add integers using absolute value
Find −15+ − −19

8 Opposites Every positive integer has an opposite negative integer

9 Additive Inverse (used when subtracting)
A number and its opposites are additive inverses. Subtraction means to “add the opposite”

10 Example 3 pg. P11 Subtract Positive Integers
Find 11−15.

11 Example 3 pg. P11 Subtract Positive Integers
Find 11−15. −4

12 Rules for multiplying integers
Integers with the same sign (++ or −−) The product will always be a positive answer Integers with different signs (+−or −+) The product will always be a negative answer

13 Example 4 pg. P12 Multiply and divide Integers
Find each product or quotient. 1.) −9 4 2.) −112÷ −8 3.) −11 −11 4.) 96÷ −6

14 Example 4 pg. P12 Multiply and divide Integers
Find each product or quotient. 1.) −9 4 −36 2.) −112÷ − ) −11 − ) 96÷ −6 −16

15 0-3 pg. P


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