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BY : LATIA CLARKE

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# BY : LATIA CLARKE - PowerPoint PPT Presentation

ADD,SUBTRACT AND MULTIPLY AND DIVIDE INTEGERS. BY : LATIA CLARKE. WHAT ARE INTEGERS. Integers are any numbers from a set. Integers are also negative and positive numbers. Positive integers are greater than zero. They can be written with or without a plus sign

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WHAT ARE INTEGERS
• Integers are any numbers from a set.
• Integers are also negative and positive numbers.
• Positive integers are greater than zero.
• They can be written with or without a plus sign
• Negative are integers less than zero.
• They are written with a minus sign.
• Zero is nether a positive or a negative.
How to multiply integer
• Multiplication is the same as repeated addition.
• When you multiply with a negative and a positive the sign is different.
• The product of two positive integers is positive
• You can use a pattern to find the product of two negative integers.
• Negative * positive = negative
• Negative * negative = positive
• ex. (2)(-3)= -6
How to divide integers
• When finding the quotient of two integers you can use related multiplication sentence.
• Division of Integers is similar to division of whole numbers (both positive) except the sign of the quotient needs to be determined.
Multiplacation,division

division

multiplication

• -35 / -1
• -117 / -3

Lets try and solve these problems. then you will get a quiz to see what you know. Then when you are done I want you to tell me the difference between dividing and multiplying integers and don’t worry we are almost done.

Help with division
• 35/-1

Step 1.how many times can 1 go into 3?

Step2.so you carry the 3 and subtract and you get zero.

Step 3. then you do the same with the 5.

• -117/-3
• Step 1. you line up 117 and 3. then you multiply.
• Step 2.You start from the back. 7(3) is 21.so you leave the 1 and carry the 2.
• Step 3. 1(3) is 3 plus 2 is 5. then 1(3) is 3 so you get 3. then your answer is 351.

I hope you were paying attention because now you have a quiz .there is no help on this. GOOD LUCK

QUIZ TIME: INTEGERS

DIRECTIONS: DIVIDE THE TWO INTEGERS AND DECIDE IF IT IS A NEGATIVE AND A POSITIVE.

• 45/-2

a.22

b.-22

c.33

d.45

Question #2
• Divide the two integers
• 188/2
• A.94
• B.-94
• C.87
• D.45
QUESTION # 3
• 128/4
• A.-32
• B.32
• C.48
• D.12

CONGRADULATIONS you have finished the quiz.